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Finding the Fourth Proportional to 630,152.97, 869,461.59 and 358,199.52

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Solution

The fourth proportional to 630,152.97, 869,461.59 and 358,199.52 is: 494,230.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,152.97 : 869,461.59 = 358,199.52 : x
  2. Step 2: Convert to fraction form
    630,152.97/869,461.59 = 358,199.52/x
  3. Step 3: Cross multiply
    630,152.97x = 869,461.59 × 358,199.52
  4. Step 4: Simplify right side
    630,152.97x = 311,440,722,279.20
  5. Step 5: Solve for x
    x = 311,440,722,279.20/630,152.97
  6. Step 6: Final answer
    x = 494,230.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.