Home / 915,658.98-1,373,045.27-316,409.91

Finding the Fourth Proportional to 915,658.98, 1,373,045.27 and 316,409.91

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Solution

The fourth proportional to 915,658.98, 1,373,045.27 and 316,409.91 is: 474,461.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,658.98 : 1,373,045.27 = 316,409.91 : x
  2. Step 2: Convert to fraction form
    915,658.98/1,373,045.27 = 316,409.91/x
  3. Step 3: Cross multiply
    915,658.98x = 1,373,045.27 × 316,409.91
  4. Step 4: Simplify right side
    915,658.98x = 434,445,128,724.58
  5. Step 5: Solve for x
    x = 434,445,128,724.58/915,658.98
  6. Step 6: Final answer
    x = 474,461.71

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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.