Home / 747,440.20-1,121,510.22-326,661.40

Finding the Fourth Proportional to 747,440.20, 1,121,510.22 and 326,661.40

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Solution

The fourth proportional to 747,440.20, 1,121,510.22 and 326,661.40 is: 490,145.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,440.20 : 1,121,510.22 = 326,661.40 : x
  2. Step 2: Convert to fraction form
    747,440.20/1,121,510.22 = 326,661.40/x
  3. Step 3: Cross multiply
    747,440.20x = 1,121,510.22 × 326,661.40
  4. Step 4: Simplify right side
    747,440.20x = 366,354,098,579.51
  5. Step 5: Solve for x
    x = 366,354,098,579.51/747,440.20
  6. Step 6: Final answer
    x = 490,145.03

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Double scale
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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.