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Finding the Fourth Proportional to 572,510.58, 858,765.15 and 217,439.70

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Solution

The fourth proportional to 572,510.58, 858,765.15 and 217,439.70 is: 326,159.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,510.58 : 858,765.15 = 217,439.70 : x
  2. Step 2: Convert to fraction form
    572,510.58/858,765.15 = 217,439.70/x
  3. Step 3: Cross multiply
    572,510.58x = 858,765.15 × 217,439.70
  4. Step 4: Simplify right side
    572,510.58x = 186,729,636,586.46
  5. Step 5: Solve for x
    x = 186,729,636,586.46/572,510.58
  6. Step 6: Final answer
    x = 326,159.28

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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.