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Finding the Fourth Proportional to 648,728.64, 895,666.78 and 580,627.52

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Solution

The fourth proportional to 648,728.64, 895,666.78 and 580,627.52 is: 801,643.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,728.64 : 895,666.78 = 580,627.52 : x
  2. Step 2: Convert to fraction form
    648,728.64/895,666.78 = 580,627.52/x
  3. Step 3: Cross multiply
    648,728.64x = 895,666.78 × 580,627.52
  4. Step 4: Simplify right side
    648,728.64x = 520,048,781,217.79
  5. Step 5: Solve for x
    x = 520,048,781,217.79/648,728.64
  6. Step 6: Final answer
    x = 801,643.01

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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.