Home / 744,025.60-1,116,038.40-445,427.20

Finding the Fourth Proportional to 744,025.60, 1,116,038.40 and 445,427.20

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Solution

The fourth proportional to 744,025.60, 1,116,038.40 and 445,427.20 is: 668,140.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,025.60 : 1,116,038.40 = 445,427.20 : x
  2. Step 2: Convert to fraction form
    744,025.60/1,116,038.40 = 445,427.20/x
  3. Step 3: Cross multiply
    744,025.60x = 1,116,038.40 × 445,427.20
  4. Step 4: Simplify right side
    744,025.60x = 497,113,859,604.48
  5. Step 5: Solve for x
    x = 497,113,859,604.48/744,025.60
  6. Step 6: Final answer
    x = 668,140.80

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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.