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Finding the Fourth Proportional to 646,851.80, 972,027.30 and 569,869.40

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Solution

The fourth proportional to 646,851.80, 972,027.30 and 569,869.40 is: 856,345.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,851.80 : 972,027.30 = 569,869.40 : x
  2. Step 2: Convert to fraction form
    646,851.80/972,027.30 = 569,869.40/x
  3. Step 3: Cross multiply
    646,851.80x = 972,027.30 × 569,869.40
  4. Step 4: Simplify right side
    646,851.80x = 553,928,614,234.62
  5. Step 5: Solve for x
    x = 553,928,614,234.62/646,851.80
  6. Step 6: Final answer
    x = 856,345.48

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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.