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Finding the Fourth Proportional to 720,244.97, 993,852.78 and 429,802.71

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Solution

The fourth proportional to 720,244.97, 993,852.78 and 429,802.71 is: 593,076.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,244.97 : 993,852.78 = 429,802.71 : x
  2. Step 2: Convert to fraction form
    720,244.97/993,852.78 = 429,802.71/x
  3. Step 3: Cross multiply
    720,244.97x = 993,852.78 × 429,802.71
  4. Step 4: Simplify right side
    720,244.97x = 427,160,613,215.77
  5. Step 5: Solve for x
    x = 427,160,613,215.77/720,244.97
  6. Step 6: Final answer
    x = 593,076.85

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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.