Home / 779,979.30-1,169,968.95-442,889.70

Finding the Fourth Proportional to 779,979.30, 1,169,968.95 and 442,889.70

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Solution

The fourth proportional to 779,979.30, 1,169,968.95 and 442,889.70 is: 664,334.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,979.30 : 1,169,968.95 = 442,889.70 : x
  2. Step 2: Convert to fraction form
    779,979.30/1,169,968.95 = 442,889.70/x
  3. Step 3: Cross multiply
    779,979.30x = 1,169,968.95 × 442,889.70
  4. Step 4: Simplify right side
    779,979.30x = 518,167,197,274.82
  5. Step 5: Solve for x
    x = 518,167,197,274.82/779,979.30
  6. Step 6: Final answer
    x = 664,334.55

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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.