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Finding the Fourth Proportional to 868,710.40, 1,301,510.40 and 744,294.40

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Solution

The fourth proportional to 868,710.40, 1,301,510.40 and 744,294.40 is: 1,115,109.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,710.40 : 1,301,510.40 = 744,294.40 : x
  2. Step 2: Convert to fraction form
    868,710.40/1,301,510.40 = 744,294.40/x
  3. Step 3: Cross multiply
    868,710.40x = 1,301,510.40 × 744,294.40
  4. Step 4: Simplify right side
    868,710.40x = 968,706,902,261.76
  5. Step 5: Solve for x
    x = 968,706,902,261.76/868,710.40
  6. Step 6: Final answer
    x = 1,115,109.13

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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.