Home / 912,269.66-1,258,892.60-498,798.86

Finding the Fourth Proportional to 912,269.66, 1,258,892.60 and 498,798.86

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Solution

The fourth proportional to 912,269.66, 1,258,892.60 and 498,798.86 is: 688,320.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,269.66 : 1,258,892.60 = 498,798.86 : x
  2. Step 2: Convert to fraction form
    912,269.66/1,258,892.60 = 498,798.86/x
  3. Step 3: Cross multiply
    912,269.66x = 1,258,892.60 × 498,798.86
  4. Step 4: Simplify right side
    912,269.66x = 627,934,193,742.44
  5. Step 5: Solve for x
    x = 627,934,193,742.44/912,269.66
  6. Step 6: Final answer
    x = 688,320.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.