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Finding the Fourth Proportional to 646,843.30, 972,014.55 and 569,860.90

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Solution

The fourth proportional to 646,843.30, 972,014.55 and 569,860.90 is: 856,332.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,843.30 : 972,014.55 = 569,860.90 : x
  2. Step 2: Convert to fraction form
    646,843.30/972,014.55 = 569,860.90/x
  3. Step 3: Cross multiply
    646,843.30x = 972,014.55 × 569,860.90
  4. Step 4: Simplify right side
    646,843.30x = 553,913,086,276.10
  5. Step 5: Solve for x
    x = 553,913,086,276.10/646,843.30
  6. Step 6: Final answer
    x = 856,332.73

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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.