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Finding the Fourth Proportional to 575,569.90, 862,862.55 and 220,838.50

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Solution

The fourth proportional to 575,569.90, 862,862.55 and 220,838.50 is: 331,068.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,569.90 : 862,862.55 = 220,838.50 : x
  2. Step 2: Convert to fraction form
    575,569.90/862,862.55 = 220,838.50/x
  3. Step 3: Cross multiply
    575,569.90x = 862,862.55 × 220,838.50
  4. Step 4: Simplify right side
    575,569.90x = 190,553,271,248.18
  5. Step 5: Solve for x
    x = 190,553,271,248.18/575,569.90
  6. Step 6: Final answer
    x = 331,068.86

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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.