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Finding the Fourth Proportional to 712,094.79, 982,693.46 and 389,834.87

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Solution

The fourth proportional to 712,094.79, 982,693.46 and 389,834.87 is: 537,973.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,094.79 : 982,693.46 = 389,834.87 : x
  2. Step 2: Convert to fraction form
    712,094.79/982,693.46 = 389,834.87/x
  3. Step 3: Cross multiply
    712,094.79x = 982,693.46 × 389,834.87
  4. Step 4: Simplify right side
    712,094.79x = 383,088,177,228.95
  5. Step 5: Solve for x
    x = 383,088,177,228.95/712,094.79
  6. Step 6: Final answer
    x = 537,973.57

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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.