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Finding the Fourth Proportional to 693,032.76, 956,374.92 and 387,113.40

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Solution

The fourth proportional to 693,032.76, 956,374.92 and 387,113.40 is: 534,210.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,032.76 : 956,374.92 = 387,113.40 : x
  2. Step 2: Convert to fraction form
    693,032.76/956,374.92 = 387,113.40/x
  3. Step 3: Cross multiply
    693,032.76x = 956,374.92 × 387,113.40
  4. Step 4: Simplify right side
    693,032.76x = 370,225,546,955.93
  5. Step 5: Solve for x
    x = 370,225,546,955.93/693,032.76
  6. Step 6: Final answer
    x = 534,210.74

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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.