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Finding the Fourth Proportional to 703,518.72, 970,970.40 and 523,426.56

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Solution

The fourth proportional to 703,518.72, 970,970.40 and 523,426.56 is: 722,413.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,518.72 : 970,970.40 = 523,426.56 : x
  2. Step 2: Convert to fraction form
    703,518.72/970,970.40 = 523,426.56/x
  3. Step 3: Cross multiply
    703,518.72x = 970,970.40 × 523,426.56
  4. Step 4: Simplify right side
    703,518.72x = 508,231,696,333.82
  5. Step 5: Solve for x
    x = 508,231,696,333.82/703,518.72
  6. Step 6: Final answer
    x = 722,413.89

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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.