Home / 990,977.40-1,486,466.10-243,023.40

Finding the Fourth Proportional to 990,977.40, 1,486,466.10 and 243,023.40

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Solution

The fourth proportional to 990,977.40, 1,486,466.10 and 243,023.40 is: 364,535.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,977.40 : 1,486,466.10 = 243,023.40 : x
  2. Step 2: Convert to fraction form
    990,977.40/1,486,466.10 = 243,023.40/x
  3. Step 3: Cross multiply
    990,977.40x = 1,486,466.10 × 243,023.40
  4. Step 4: Simplify right side
    990,977.40x = 361,246,045,606.74
  5. Step 5: Solve for x
    x = 361,246,045,606.74/990,977.40
  6. Step 6: Final answer
    x = 364,535.10

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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.