Home / 738,156.95-1,018,656.59-398,625.17

Finding the Fourth Proportional to 738,156.95, 1,018,656.59 and 398,625.17

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Solution

The fourth proportional to 738,156.95, 1,018,656.59 and 398,625.17 is: 550,102.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,156.95 : 1,018,656.59 = 398,625.17 : x
  2. Step 2: Convert to fraction form
    738,156.95/1,018,656.59 = 398,625.17/x
  3. Step 3: Cross multiply
    738,156.95x = 1,018,656.59 × 398,625.17
  4. Step 4: Simplify right side
    738,156.95x = 406,062,154,367.24
  5. Step 5: Solve for x
    x = 406,062,154,367.24/738,156.95
  6. Step 6: Final answer
    x = 550,102.73

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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.