Home / 908,800.30-1,363,200.45-310,437.10

Finding the Fourth Proportional to 908,800.30, 1,363,200.45 and 310,437.10

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Solution

The fourth proportional to 908,800.30, 1,363,200.45 and 310,437.10 is: 465,655.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,800.30 : 1,363,200.45 = 310,437.10 : x
  2. Step 2: Convert to fraction form
    908,800.30/1,363,200.45 = 310,437.10/x
  3. Step 3: Cross multiply
    908,800.30x = 1,363,200.45 × 310,437.10
  4. Step 4: Simplify right side
    908,800.30x = 423,187,994,416.70
  5. Step 5: Solve for x
    x = 423,187,994,416.70/908,800.30
  6. Step 6: Final answer
    x = 465,655.65

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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.