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Finding the Fourth Proportional to 672,703.63, 932,338.27 and 660,106.51

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Solution

The fourth proportional to 672,703.63, 932,338.27 and 660,106.51 is: 914,879.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,703.63 : 932,338.27 = 660,106.51 : x
  2. Step 2: Convert to fraction form
    672,703.63/932,338.27 = 660,106.51/x
  3. Step 3: Cross multiply
    672,703.63x = 932,338.27 × 660,106.51
  4. Step 4: Simplify right side
    672,703.63x = 615,442,561,549.14
  5. Step 5: Solve for x
    x = 615,442,561,549.14/672,703.63
  6. Step 6: Final answer
    x = 914,879.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.