Home / 910,416.10-1,365,624.15-311,323.90

Finding the Fourth Proportional to 910,416.10, 1,365,624.15 and 311,323.90

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Solution

The fourth proportional to 910,416.10, 1,365,624.15 and 311,323.90 is: 466,985.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,416.10 : 1,365,624.15 = 311,323.90 : x
  2. Step 2: Convert to fraction form
    910,416.10/1,365,624.15 = 311,323.90/x
  3. Step 3: Cross multiply
    910,416.10x = 1,365,624.15 × 311,323.90
  4. Step 4: Simplify right side
    910,416.10x = 425,151,436,312.19
  5. Step 5: Solve for x
    x = 425,151,436,312.19/910,416.10
  6. Step 6: Final answer
    x = 466,985.85

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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.