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Finding the Fourth Proportional to 713,256.81, 984,306.29 and 386,580.26

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Solution

The fourth proportional to 713,256.81, 984,306.29 and 386,580.26 is: 533,487.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,256.81 : 984,306.29 = 386,580.26 : x
  2. Step 2: Convert to fraction form
    713,256.81/984,306.29 = 386,580.26/x
  3. Step 3: Cross multiply
    713,256.81x = 984,306.29 × 386,580.26
  4. Step 4: Simplify right side
    713,256.81x = 380,513,381,507.84
  5. Step 5: Solve for x
    x = 380,513,381,507.84/713,256.81
  6. Step 6: Final answer
    x = 533,487.20

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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.