Home / 1,090,133.40-1,635,005.70-690,058.20

Finding the Fourth Proportional to 1,090,133.40, 1,635,005.70 and 690,058.20

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Solution

The fourth proportional to 1,090,133.40, 1,635,005.70 and 690,058.20 is: 1,034,964.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,133.40 : 1,635,005.70 = 690,058.20 : x
  2. Step 2: Convert to fraction form
    1,090,133.40/1,635,005.70 = 690,058.20/x
  3. Step 3: Cross multiply
    1,090,133.40x = 1,635,005.70 × 690,058.20
  4. Step 4: Simplify right side
    1,090,133.40x = 1,128,249,090,331.74
  5. Step 5: Solve for x
    x = 1,128,249,090,331.74/1,090,133.40
  6. Step 6: Final answer
    x = 1,034,964.24

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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.