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Finding the Fourth Proportional to 713,248.53, 984,283.20 and 390,960.82

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Solution

The fourth proportional to 713,248.53, 984,283.20 and 390,960.82 is: 539,526.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,248.53 : 984,283.20 = 390,960.82 : x
  2. Step 2: Convert to fraction form
    713,248.53/984,283.20 = 390,960.82/x
  3. Step 3: Cross multiply
    713,248.53x = 984,283.20 × 390,960.82
  4. Step 4: Simplify right side
    713,248.53x = 384,816,166,984.22
  5. Step 5: Solve for x
    x = 384,816,166,984.22/713,248.53
  6. Step 6: Final answer
    x = 539,526.06

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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.