Home / 832,307.72-1,148,220.12-487,969.44

Finding the Fourth Proportional to 832,307.72, 1,148,220.12 and 487,969.44

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Solution

The fourth proportional to 832,307.72, 1,148,220.12 and 487,969.44 is: 673,184.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,307.72 : 1,148,220.12 = 487,969.44 : x
  2. Step 2: Convert to fraction form
    832,307.72/1,148,220.12 = 487,969.44/x
  3. Step 3: Cross multiply
    832,307.72x = 1,148,220.12 × 487,969.44
  4. Step 4: Simplify right side
    832,307.72x = 560,296,328,953.13
  5. Step 5: Solve for x
    x = 560,296,328,953.13/832,307.72
  6. Step 6: Final answer
    x = 673,184.11

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Double scale
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Similar ratio
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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.