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Finding the Fourth Proportional to 607,431.44, 912,083.54 and 513,890.72

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Solution

The fourth proportional to 607,431.44, 912,083.54 and 513,890.72 is: 771,628.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,431.44 : 912,083.54 = 513,890.72 : x
  2. Step 2: Convert to fraction form
    607,431.44/912,083.54 = 513,890.72/x
  3. Step 3: Cross multiply
    607,431.44x = 912,083.54 × 513,890.72
  4. Step 4: Simplify right side
    607,431.44x = 468,711,267,070.75
  5. Step 5: Solve for x
    x = 468,711,267,070.75/607,431.44
  6. Step 6: Final answer
    x = 771,628.26

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1.5x scale

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.