Home / 788,661.60-1,181,437.20-472,178.40

Finding the Fourth Proportional to 788,661.60, 1,181,437.20 and 472,178.40

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Solution

The fourth proportional to 788,661.60, 1,181,437.20 and 472,178.40 is: 707,336.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,661.60 : 1,181,437.20 = 472,178.40 : x
  2. Step 2: Convert to fraction form
    788,661.60/1,181,437.20 = 472,178.40/x
  3. Step 3: Cross multiply
    788,661.60x = 1,181,437.20 × 472,178.40
  4. Step 4: Simplify right side
    788,661.60x = 557,849,126,796.48
  5. Step 5: Solve for x
    x = 557,849,126,796.48/788,661.60
  6. Step 6: Final answer
    x = 707,336.49

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Double scale
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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.