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Finding the Fourth Proportional to 722,870.97, 997,527.70 and 432,642.45

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Solution

The fourth proportional to 722,870.97, 997,527.70 and 432,642.45 is: 597,026.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,870.97 : 997,527.70 = 432,642.45 : x
  2. Step 2: Convert to fraction form
    722,870.97/997,527.70 = 432,642.45/x
  3. Step 3: Cross multiply
    722,870.97x = 997,527.70 × 432,642.45
  4. Step 4: Simplify right side
    722,870.97x = 431,572,828,070.87
  5. Step 5: Solve for x
    x = 431,572,828,070.87/722,870.97
  6. Step 6: Final answer
    x = 597,026.09

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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.