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Finding the Fourth Proportional to 898,539.24, 1,239,978.06 and 496,131.24

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Solution

The fourth proportional to 898,539.24, 1,239,978.06 and 496,131.24 is: 684,657.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,539.24 : 1,239,978.06 = 496,131.24 : x
  2. Step 2: Convert to fraction form
    898,539.24/1,239,978.06 = 496,131.24/x
  3. Step 3: Cross multiply
    898,539.24x = 1,239,978.06 × 496,131.24
  4. Step 4: Simplify right side
    898,539.24x = 615,191,852,480.59
  5. Step 5: Solve for x
    x = 615,191,852,480.59/898,539.24
  6. Step 6: Final answer
    x = 684,657.75

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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.