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Finding the Fourth Proportional to 653,848.74, 902,713.82 and 518,429.70

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Solution

The fourth proportional to 653,848.74, 902,713.82 and 518,429.70 is: 715,752.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,848.74 : 902,713.82 = 518,429.70 : x
  2. Step 2: Convert to fraction form
    653,848.74/902,713.82 = 518,429.70/x
  3. Step 3: Cross multiply
    653,848.74x = 902,713.82 × 518,429.70
  4. Step 4: Simplify right side
    653,848.74x = 467,993,652,296.31
  5. Step 5: Solve for x
    x = 467,993,652,296.31/653,848.74
  6. Step 6: Final answer
    x = 715,752.17

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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.