Home / 849,602.47-1,274,100.14-280,878.59

Finding the Fourth Proportional to 849,602.47, 1,274,100.14 and 280,878.59

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Solution

The fourth proportional to 849,602.47, 1,274,100.14 and 280,878.59 is: 421,217.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,602.47 : 1,274,100.14 = 280,878.59 : x
  2. Step 2: Convert to fraction form
    849,602.47/1,274,100.14 = 280,878.59/x
  3. Step 3: Cross multiply
    849,602.47x = 1,274,100.14 × 280,878.59
  4. Step 4: Simplify right side
    849,602.47x = 357,867,445,173.70
  5. Step 5: Solve for x
    x = 357,867,445,173.70/849,602.47
  6. Step 6: Final answer
    x = 421,217.52

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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.