Home / 748,420.92-1,033,913.70-647,643.96

Finding the Fourth Proportional to 748,420.92, 1,033,913.70 and 647,643.96

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Solution

The fourth proportional to 748,420.92, 1,033,913.70 and 647,643.96 is: 894,694.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,420.92 : 1,033,913.70 = 647,643.96 : x
  2. Step 2: Convert to fraction form
    748,420.92/1,033,913.70 = 647,643.96/x
  3. Step 3: Cross multiply
    748,420.92x = 1,033,913.70 × 647,643.96
  4. Step 4: Simplify right side
    748,420.92x = 669,607,962,966.25
  5. Step 5: Solve for x
    x = 669,607,962,966.25/748,420.92
  6. Step 6: Final answer
    x = 894,694.34

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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.