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Finding the Fourth Proportional to 648,877.30, 973,315.95 and 572,769.70

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Solution

The fourth proportional to 648,877.30, 973,315.95 and 572,769.70 is: 859,154.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,877.30 : 973,315.95 = 572,769.70 : x
  2. Step 2: Convert to fraction form
    648,877.30/973,315.95 = 572,769.70/x
  3. Step 3: Cross multiply
    648,877.30x = 973,315.95 × 572,769.70
  4. Step 4: Simplify right side
    648,877.30x = 557,485,884,686.72
  5. Step 5: Solve for x
    x = 557,485,884,686.72/648,877.30
  6. Step 6: Final answer
    x = 859,154.55

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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.