Home / 521,246.94-719,285.55-288,657.18

Finding the Fourth Proportional to 521,246.94, 719,285.55 and 288,657.18

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Solution

The fourth proportional to 521,246.94, 719,285.55 and 288,657.18 is: 398,327.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,246.94 : 719,285.55 = 288,657.18 : x
  2. Step 2: Convert to fraction form
    521,246.94/719,285.55 = 288,657.18/x
  3. Step 3: Cross multiply
    521,246.94x = 719,285.55 × 288,657.18
  4. Step 4: Simplify right side
    521,246.94x = 207,626,938,477.75
  5. Step 5: Solve for x
    x = 207,626,938,477.75/521,246.94
  6. Step 6: Final answer
    x = 398,327.40

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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.