Home / 726,746.88-1,090,125.18-253,430.40

Finding the Fourth Proportional to 726,746.88, 1,090,125.18 and 253,430.40

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Solution

The fourth proportional to 726,746.88, 1,090,125.18 and 253,430.40 is: 380,147.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,746.88 : 1,090,125.18 = 253,430.40 : x
  2. Step 2: Convert to fraction form
    726,746.88/1,090,125.18 = 253,430.40/x
  3. Step 3: Cross multiply
    726,746.88x = 1,090,125.18 × 253,430.40
  4. Step 4: Simplify right side
    726,746.88x = 276,270,860,417.47
  5. Step 5: Solve for x
    x = 276,270,860,417.47/726,746.88
  6. Step 6: Final answer
    x = 380,147.29

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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.