Home / 1,157,978.80-1,598,010.42-634,686.40

Finding the Fourth Proportional to 1,157,978.80, 1,598,010.42 and 634,686.40

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Solution

The fourth proportional to 1,157,978.80, 1,598,010.42 and 634,686.40 is: 875,867.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157,978.80 : 1,598,010.42 = 634,686.40 : x
  2. Step 2: Convert to fraction form
    1,157,978.80/1,598,010.42 = 634,686.40/x
  3. Step 3: Cross multiply
    1,157,978.80x = 1,598,010.42 × 634,686.40
  4. Step 4: Simplify right side
    1,157,978.80x = 1,014,235,480,632.29
  5. Step 5: Solve for x
    x = 1,014,235,480,632.29/1,157,978.80
  6. Step 6: Final answer
    x = 875,867.05

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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.