Home / 459,346.90-687,465.15-403,359.70

Finding the Fourth Proportional to 459,346.90, 687,465.15 and 403,359.70

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Solution

The fourth proportional to 459,346.90, 687,465.15 and 403,359.70 is: 603,673.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,346.90 : 687,465.15 = 403,359.70 : x
  2. Step 2: Convert to fraction form
    459,346.90/687,465.15 = 403,359.70/x
  3. Step 3: Cross multiply
    459,346.90x = 687,465.15 × 403,359.70
  4. Step 4: Simplify right side
    459,346.90x = 277,295,736,664.46
  5. Step 5: Solve for x
    x = 277,295,736,664.46/459,346.90
  6. Step 6: Final answer
    x = 603,673.90

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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.