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Finding the Fourth Proportional to 618,061.32, 852,904.68 and 342,407.82

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Solution

The fourth proportional to 618,061.32, 852,904.68 and 342,407.82 is: 472,511.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,061.32 : 852,904.68 = 342,407.82 : x
  2. Step 2: Convert to fraction form
    618,061.32/852,904.68 = 342,407.82/x
  3. Step 3: Cross multiply
    618,061.32x = 852,904.68 × 342,407.82
  4. Step 4: Simplify right side
    618,061.32x = 292,041,232,146.60
  5. Step 5: Solve for x
    x = 292,041,232,146.60/618,061.32
  6. Step 6: Final answer
    x = 472,511.74

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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.