Home / 983,999.79-1,357,926.47-548,445.21

Finding the Fourth Proportional to 983,999.79, 1,357,926.47 and 548,445.21

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Solution

The fourth proportional to 983,999.79, 1,357,926.47 and 548,445.21 is: 756,858.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,999.79 : 1,357,926.47 = 548,445.21 : x
  2. Step 2: Convert to fraction form
    983,999.79/1,357,926.47 = 548,445.21/x
  3. Step 3: Cross multiply
    983,999.79x = 1,357,926.47 × 548,445.21
  4. Step 4: Simplify right side
    983,999.79x = 744,748,268,003.71
  5. Step 5: Solve for x
    x = 744,748,268,003.71/983,999.79
  6. Step 6: Final answer
    x = 756,858.16

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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.