Home / 712,980.48-983,887.92-426,331.20

Finding the Fourth Proportional to 712,980.48, 983,887.92 and 426,331.20

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Solution

The fourth proportional to 712,980.48, 983,887.92 and 426,331.20 is: 588,322.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,980.48 : 983,887.92 = 426,331.20 : x
  2. Step 2: Convert to fraction form
    712,980.48/983,887.92 = 426,331.20/x
  3. Step 3: Cross multiply
    712,980.48x = 983,887.92 × 426,331.20
  4. Step 4: Simplify right side
    712,980.48x = 419,462,117,599.10
  5. Step 5: Solve for x
    x = 419,462,117,599.10/712,980.48
  6. Step 6: Final answer
    x = 588,322.02

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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.