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Finding the Fourth Proportional to 564,779.80, 847,169.70 and 486,047.80

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Solution

The fourth proportional to 564,779.80, 847,169.70 and 486,047.80 is: 729,071.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,779.80 : 847,169.70 = 486,047.80 : x
  2. Step 2: Convert to fraction form
    564,779.80/847,169.70 = 486,047.80/x
  3. Step 3: Cross multiply
    564,779.80x = 847,169.70 × 486,047.80
  4. Step 4: Simplify right side
    564,779.80x = 411,764,968,911.66
  5. Step 5: Solve for x
    x = 411,764,968,911.66/564,779.80
  6. Step 6: Final answer
    x = 729,071.70

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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.