Home / 690,498.90-1,034,465.31-375,220.98

Finding the Fourth Proportional to 690,498.90, 1,034,465.31 and 375,220.98

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Solution

The fourth proportional to 690,498.90, 1,034,465.31 and 375,220.98 is: 562,134.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,498.90 : 1,034,465.31 = 375,220.98 : x
  2. Step 2: Convert to fraction form
    690,498.90/1,034,465.31 = 375,220.98/x
  3. Step 3: Cross multiply
    690,498.90x = 1,034,465.31 × 375,220.98
  4. Step 4: Simplify right side
    690,498.90x = 388,153,087,394.20
  5. Step 5: Solve for x
    x = 388,153,087,394.20/690,498.90
  6. Step 6: Final answer
    x = 562,134.26

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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.