Home / 858,111.52-1,287,582-353,045.20

Finding the Fourth Proportional to 858,111.52, 1,287,582 and 353,045.20

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Solution

The fourth proportional to 858,111.52, 1,287,582 and 353,045.20 is: 529,738.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,111.52 : 1,287,582 = 353,045.20 : x
  2. Step 2: Convert to fraction form
    858,111.52/1,287,582 = 353,045.20/x
  3. Step 3: Cross multiply
    858,111.52x = 1,287,582 × 353,045.20
  4. Step 4: Simplify right side
    858,111.52x = 454,574,644,706.40
  5. Step 5: Solve for x
    x = 454,574,644,706.40/858,111.52
  6. Step 6: Final answer
    x = 529,738.42

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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.