Home / 738,157.95-1,018,657.96-398,626.17

Finding the Fourth Proportional to 738,157.95, 1,018,657.96 and 398,626.17

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Solution

The fourth proportional to 738,157.95, 1,018,657.96 and 398,626.17 is: 550,104.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,157.95 : 1,018,657.96 = 398,626.17 : x
  2. Step 2: Convert to fraction form
    738,157.95/1,018,657.96 = 398,626.17/x
  3. Step 3: Cross multiply
    738,157.95x = 1,018,657.96 × 398,626.17
  4. Step 4: Simplify right side
    738,157.95x = 406,063,721,134.81
  5. Step 5: Solve for x
    x = 406,063,721,134.81/738,157.95
  6. Step 6: Final answer
    x = 550,104.11

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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.