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Finding the Fourth Proportional to 480,000.40, 662,398.53 and 265,140.47

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Solution

The fourth proportional to 480,000.40, 662,398.53 and 265,140.47 is: 365,892.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,000.40 : 662,398.53 = 265,140.47 : x
  2. Step 2: Convert to fraction form
    480,000.40/662,398.53 = 265,140.47/x
  3. Step 3: Cross multiply
    480,000.40x = 662,398.53 × 265,140.47
  4. Step 4: Simplify right side
    480,000.40x = 175,628,656,619.65
  5. Step 5: Solve for x
    x = 175,628,656,619.65/480,000.40
  6. Step 6: Final answer
    x = 365,892.73

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1.5x scale

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.