Home / 901,280.79-1,242,442.40-686,045.97

Finding the Fourth Proportional to 901,280.79, 1,242,442.40 and 686,045.97

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Solution

The fourth proportional to 901,280.79, 1,242,442.40 and 686,045.97 is: 945,734.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,280.79 : 1,242,442.40 = 686,045.97 : x
  2. Step 2: Convert to fraction form
    901,280.79/1,242,442.40 = 686,045.97/x
  3. Step 3: Cross multiply
    901,280.79x = 1,242,442.40 × 686,045.97
  4. Step 4: Simplify right side
    901,280.79x = 852,372,598,046.90
  5. Step 5: Solve for x
    x = 852,372,598,046.90/901,280.79
  6. Step 6: Final answer
    x = 945,734.79

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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.