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Finding the Fourth Proportional to 497,237.20, 745,855.80 and 308,280.40

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Solution

The fourth proportional to 497,237.20, 745,855.80 and 308,280.40 is: 462,420.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,237.20 : 745,855.80 = 308,280.40 : x
  2. Step 2: Convert to fraction form
    497,237.20/745,855.80 = 308,280.40/x
  3. Step 3: Cross multiply
    497,237.20x = 745,855.80 × 308,280.40
  4. Step 4: Simplify right side
    497,237.20x = 229,932,724,366.32
  5. Step 5: Solve for x
    x = 229,932,724,366.32/497,237.20
  6. Step 6: Final answer
    x = 462,420.60

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1.5x scale

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.