Home / 914,643.60-1,371,965.40-283,621.20

Finding the Fourth Proportional to 914,643.60, 1,371,965.40 and 283,621.20

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Solution

The fourth proportional to 914,643.60, 1,371,965.40 and 283,621.20 is: 425,431.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,643.60 : 1,371,965.40 = 283,621.20 : x
  2. Step 2: Convert to fraction form
    914,643.60/1,371,965.40 = 283,621.20/x
  3. Step 3: Cross multiply
    914,643.60x = 1,371,965.40 × 283,621.20
  4. Step 4: Simplify right side
    914,643.60x = 389,118,473,106.48
  5. Step 5: Solve for x
    x = 389,118,473,106.48/914,643.60
  6. Step 6: Final answer
    x = 425,431.80

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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.