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Finding the Fourth Proportional to 703,017.51, 970,158.99 and 380,720.13

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Solution

The fourth proportional to 703,017.51, 970,158.99 and 380,720.13 is: 525,390.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,017.51 : 970,158.99 = 380,720.13 : x
  2. Step 2: Convert to fraction form
    703,017.51/970,158.99 = 380,720.13/x
  3. Step 3: Cross multiply
    703,017.51x = 970,158.99 × 380,720.13
  4. Step 4: Simplify right side
    703,017.51x = 369,359,056,793.47
  5. Step 5: Solve for x
    x = 369,359,056,793.47/703,017.51
  6. Step 6: Final answer
    x = 525,390.98

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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.