Home / 709,542.31-1,063,389.34-288,325.75

Finding the Fourth Proportional to 709,542.31, 1,063,389.34 and 288,325.75

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Solution

The fourth proportional to 709,542.31, 1,063,389.34 and 288,325.75 is: 432,113.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,542.31 : 1,063,389.34 = 288,325.75 : x
  2. Step 2: Convert to fraction form
    709,542.31/1,063,389.34 = 288,325.75/x
  3. Step 3: Cross multiply
    709,542.31x = 1,063,389.34 × 288,325.75
  4. Step 4: Simplify right side
    709,542.31x = 306,602,528,997.51
  5. Step 5: Solve for x
    x = 306,602,528,997.51/709,542.31
  6. Step 6: Final answer
    x = 432,113.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.