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Finding the Fourth Proportional to 528,184.80, 790,877.52 and 317,532.96

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Solution

The fourth proportional to 528,184.80, 790,877.52 and 317,532.96 is: 475,457.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,184.80 : 790,877.52 = 317,532.96 : x
  2. Step 2: Convert to fraction form
    528,184.80/790,877.52 = 317,532.96/x
  3. Step 3: Cross multiply
    528,184.80x = 790,877.52 × 317,532.96
  4. Step 4: Simplify right side
    528,184.80x = 251,129,679,923.06
  5. Step 5: Solve for x
    x = 251,129,679,923.06/528,184.80
  6. Step 6: Final answer
    x = 475,457.98

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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.