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Finding the Fourth Proportional to 672,703.24, 932,337.74 and 660,106.12

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Solution

The fourth proportional to 672,703.24, 932,337.74 and 660,106.12 is: 914,878.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,703.24 : 932,337.74 = 660,106.12 : x
  2. Step 2: Convert to fraction form
    672,703.24/932,337.74 = 660,106.12/x
  3. Step 3: Cross multiply
    672,703.24x = 932,337.74 × 660,106.12
  4. Step 4: Simplify right side
    672,703.24x = 615,441,848,080.97
  5. Step 5: Solve for x
    x = 615,441,848,080.97/672,703.24
  6. Step 6: Final answer
    x = 914,878.67

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Double scale
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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.