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Finding the Fourth Proportional to 587,316.30, 810,303.72 and 329,155.50

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Solution

The fourth proportional to 587,316.30, 810,303.72 and 329,155.50 is: 454,126.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,316.30 : 810,303.72 = 329,155.50 : x
  2. Step 2: Convert to fraction form
    587,316.30/810,303.72 = 329,155.50/x
  3. Step 3: Cross multiply
    587,316.30x = 810,303.72 × 329,155.50
  4. Step 4: Simplify right side
    587,316.30x = 266,715,926,108.46
  5. Step 5: Solve for x
    x = 266,715,926,108.46/587,316.30
  6. Step 6: Final answer
    x = 454,126.55

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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.