Home / 877,645.28-1,316,944.20-372,490.40

Finding the Fourth Proportional to 877,645.28, 1,316,944.20 and 372,490.40

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Solution

The fourth proportional to 877,645.28, 1,316,944.20 and 372,490.40 is: 558,937.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,645.28 : 1,316,944.20 = 372,490.40 : x
  2. Step 2: Convert to fraction form
    877,645.28/1,316,944.20 = 372,490.40/x
  3. Step 3: Cross multiply
    877,645.28x = 1,316,944.20 × 372,490.40
  4. Step 4: Simplify right side
    877,645.28x = 490,549,071,835.68
  5. Step 5: Solve for x
    x = 490,549,071,835.68/877,645.28
  6. Step 6: Final answer
    x = 558,937.74

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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.