Home / 984,643.52-1,358,287.31-678,192.84

Finding the Fourth Proportional to 984,643.52, 1,358,287.31 and 678,192.84

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Solution

The fourth proportional to 984,643.52, 1,358,287.31 and 678,192.84 is: 935,547.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,643.52 : 1,358,287.31 = 678,192.84 : x
  2. Step 2: Convert to fraction form
    984,643.52/1,358,287.31 = 678,192.84/x
  3. Step 3: Cross multiply
    984,643.52x = 1,358,287.31 × 678,192.84
  4. Step 4: Simplify right side
    984,643.52x = 921,180,730,000.34
  5. Step 5: Solve for x
    x = 921,180,730,000.34/984,643.52
  6. Step 6: Final answer
    x = 935,547.45

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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.