Home / 742,271.40-1,113,407.10-656,650.35

Finding the Fourth Proportional to 742,271.40, 1,113,407.10 and 656,650.35

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Solution

The fourth proportional to 742,271.40, 1,113,407.10 and 656,650.35 is: 984,975.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,271.40 : 1,113,407.10 = 656,650.35 : x
  2. Step 2: Convert to fraction form
    742,271.40/1,113,407.10 = 656,650.35/x
  3. Step 3: Cross multiply
    742,271.40x = 1,113,407.10 × 656,650.35
  4. Step 4: Simplify right side
    742,271.40x = 731,119,161,907.49
  5. Step 5: Solve for x
    x = 731,119,161,907.49/742,271.40
  6. Step 6: Final answer
    x = 984,975.53

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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.