Home / 684,966.40-1,027,430.40-310,988.80

Finding the Fourth Proportional to 684,966.40, 1,027,430.40 and 310,988.80

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Solution

The fourth proportional to 684,966.40, 1,027,430.40 and 310,988.80 is: 466,474.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,966.40 : 1,027,430.40 = 310,988.80 : x
  2. Step 2: Convert to fraction form
    684,966.40/1,027,430.40 = 310,988.80/x
  3. Step 3: Cross multiply
    684,966.40x = 1,027,430.40 × 310,988.80
  4. Step 4: Simplify right side
    684,966.40x = 319,519,347,179.52
  5. Step 5: Solve for x
    x = 319,519,347,179.52/684,966.40
  6. Step 6: Final answer
    x = 466,474.48

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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.