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Finding the Fourth Proportional to 702,689.95, 969,712.45 and 380,400.04

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Solution

The fourth proportional to 702,689.95, 969,712.45 and 380,400.04 is: 524,952.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,689.95 : 969,712.45 = 380,400.04 : x
  2. Step 2: Convert to fraction form
    702,689.95/969,712.45 = 380,400.04/x
  3. Step 3: Cross multiply
    702,689.95x = 969,712.45 × 380,400.04
  4. Step 4: Simplify right side
    702,689.95x = 368,878,659,884.23
  5. Step 5: Solve for x
    x = 368,878,659,884.23/702,689.95
  6. Step 6: Final answer
    x = 524,952.24

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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.