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Finding the Fourth Proportional to 732,988.80, 1,098,964.80 and 333,820.80

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Solution

The fourth proportional to 732,988.80, 1,098,964.80 and 333,820.80 is: 500,495.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    732,988.80 : 1,098,964.80 = 333,820.80 : x
  2. Step 2: Convert to fraction form
    732,988.80/1,098,964.80 = 333,820.80/x
  3. Step 3: Cross multiply
    732,988.80x = 1,098,964.80 × 333,820.80
  4. Step 4: Simplify right side
    732,988.80x = 366,857,308,707.84
  5. Step 5: Solve for x
    x = 366,857,308,707.84/732,988.80
  6. Step 6: Final answer
    x = 500,495.11

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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.