Home / 684,584.40-1,026,857.40-310,606.80

Finding the Fourth Proportional to 684,584.40, 1,026,857.40 and 310,606.80

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Solution

The fourth proportional to 684,584.40, 1,026,857.40 and 310,606.80 is: 465,901.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,584.40 : 1,026,857.40 = 310,606.80 : x
  2. Step 2: Convert to fraction form
    684,584.40/1,026,857.40 = 310,606.80/x
  3. Step 3: Cross multiply
    684,584.40x = 1,026,857.40 × 310,606.80
  4. Step 4: Simplify right side
    684,584.40x = 318,948,891,070.32
  5. Step 5: Solve for x
    x = 318,948,891,070.32/684,584.40
  6. Step 6: Final answer
    x = 465,901.49

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.