Home / 788,072.80-1,182,109.20-472,885.60

Finding the Fourth Proportional to 788,072.80, 1,182,109.20 and 472,885.60

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Solution

The fourth proportional to 788,072.80, 1,182,109.20 and 472,885.60 is: 709,328.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,072.80 : 1,182,109.20 = 472,885.60 : x
  2. Step 2: Convert to fraction form
    788,072.80/1,182,109.20 = 472,885.60/x
  3. Step 3: Cross multiply
    788,072.80x = 1,182,109.20 × 472,885.60
  4. Step 4: Simplify right side
    788,072.80x = 559,002,418,307.52
  5. Step 5: Solve for x
    x = 559,002,418,307.52/788,072.80
  6. Step 6: Final answer
    x = 709,328.40

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.