Home / 742,500.80-1,113,751.20-243,864.80

Finding the Fourth Proportional to 742,500.80, 1,113,751.20 and 243,864.80

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Solution

The fourth proportional to 742,500.80, 1,113,751.20 and 243,864.80 is: 365,797.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,500.80 : 1,113,751.20 = 243,864.80 : x
  2. Step 2: Convert to fraction form
    742,500.80/1,113,751.20 = 243,864.80/x
  3. Step 3: Cross multiply
    742,500.80x = 1,113,751.20 × 243,864.80
  4. Step 4: Simplify right side
    742,500.80x = 271,604,713,637.76
  5. Step 5: Solve for x
    x = 271,604,713,637.76/742,500.80
  6. Step 6: Final answer
    x = 365,797.20

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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.