Home / 738,158.95-1,018,659.35-398,627.17

Finding the Fourth Proportional to 738,158.95, 1,018,659.35 and 398,627.17

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Solution

The fourth proportional to 738,158.95, 1,018,659.35 and 398,627.17 is: 550,105.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,158.95 : 1,018,659.35 = 398,627.17 : x
  2. Step 2: Convert to fraction form
    738,158.95/1,018,659.35 = 398,627.17/x
  3. Step 3: Cross multiply
    738,158.95x = 1,018,659.35 × 398,627.17
  4. Step 4: Simplify right side
    738,158.95x = 406,065,291,891.40
  5. Step 5: Solve for x
    x = 406,065,291,891.40/738,158.95
  6. Step 6: Final answer
    x = 550,105.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.