Home / 572,510.10-858,200.18-319,911.60

Finding the Fourth Proportional to 572,510.10, 858,200.18 and 319,911.60

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Solution

The fourth proportional to 572,510.10, 858,200.18 and 319,911.60 is: 479,551.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,510.10 : 858,200.18 = 319,911.60 : x
  2. Step 2: Convert to fraction form
    572,510.10/858,200.18 = 319,911.60/x
  3. Step 3: Cross multiply
    572,510.10x = 858,200.18 × 319,911.60
  4. Step 4: Simplify right side
    572,510.10x = 274,548,191,104.53
  5. Step 5: Solve for x
    x = 274,548,191,104.53/572,510.10
  6. Step 6: Final answer
    x = 479,551.70

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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.