Home / 742,887.40-1,114,622.70-293,531.80

Finding the Fourth Proportional to 742,887.40, 1,114,622.70 and 293,531.80

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Solution

The fourth proportional to 742,887.40, 1,114,622.70 and 293,531.80 is: 440,412.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,887.40 : 1,114,622.70 = 293,531.80 : x
  2. Step 2: Convert to fraction form
    742,887.40/1,114,622.70 = 293,531.80/x
  3. Step 3: Cross multiply
    742,887.40x = 1,114,622.70 × 293,531.80
  4. Step 4: Simplify right side
    742,887.40x = 327,177,207,451.86
  5. Step 5: Solve for x
    x = 327,177,207,451.86/742,887.40
  6. Step 6: Final answer
    x = 440,412.92

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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.