Home / 1,543,440.74-2,315,248.59-478,634.18

Finding the Fourth Proportional to 1,543,440.74, 2,315,248.59 and 478,634.18

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Solution

The fourth proportional to 1,543,440.74, 2,315,248.59 and 478,634.18 is: 717,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543,440.74 : 2,315,248.59 = 478,634.18 : x
  2. Step 2: Convert to fraction form
    1,543,440.74/2,315,248.59 = 478,634.18/x
  3. Step 3: Cross multiply
    1,543,440.74x = 2,315,248.59 × 478,634.18
  4. Step 4: Simplify right side
    1,543,440.74x = 1,108,157,110,370.81
  5. Step 5: Solve for x
    x = 1,108,157,110,370.81/1,543,440.74
  6. Step 6: Final answer
    x = 717,978.40

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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.