Home / 745,885.54-1,029,052.04-487,909.74

Finding the Fourth Proportional to 745,885.54, 1,029,052.04 and 487,909.74

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Solution

The fourth proportional to 745,885.54, 1,029,052.04 and 487,909.74 is: 673,138.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,885.54 : 1,029,052.04 = 487,909.74 : x
  2. Step 2: Convert to fraction form
    745,885.54/1,029,052.04 = 487,909.74/x
  3. Step 3: Cross multiply
    745,885.54x = 1,029,052.04 × 487,909.74
  4. Step 4: Simplify right side
    745,885.54x = 502,084,513,282.87
  5. Step 5: Solve for x
    x = 502,084,513,282.87/745,885.54
  6. Step 6: Final answer
    x = 673,138.82

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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.