Home / 878,529.90-1,316,290.91-479,451.00

Finding the Fourth Proportional to 878,529.90, 1,316,290.91 and 479,451.00

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Solution

The fourth proportional to 878,529.90, 1,316,290.91 and 479,451.00 is: 718,355.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,529.90 : 1,316,290.91 = 479,451.00 : x
  2. Step 2: Convert to fraction form
    878,529.90/1,316,290.91 = 479,451.00/x
  3. Step 3: Cross multiply
    878,529.90x = 1,316,290.91 × 479,451.00
  4. Step 4: Simplify right side
    878,529.90x = 631,096,988,225.11
  5. Step 5: Solve for x
    x = 631,096,988,225.11/878,529.90
  6. Step 6: Final answer
    x = 718,355.73

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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.