Home / 1,142,681.28-1,713,484.68-422,525.40

Finding the Fourth Proportional to 1,142,681.28, 1,713,484.68 and 422,525.40

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Solution

The fourth proportional to 1,142,681.28, 1,713,484.68 and 422,525.40 is: 633,589.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,681.28 : 1,713,484.68 = 422,525.40 : x
  2. Step 2: Convert to fraction form
    1,142,681.28/1,713,484.68 = 422,525.40/x
  3. Step 3: Cross multiply
    1,142,681.28x = 1,713,484.68 × 422,525.40
  4. Step 4: Simplify right side
    1,142,681.28x = 723,990,799,810.87
  5. Step 5: Solve for x
    x = 723,990,799,810.87/1,142,681.28
  6. Step 6: Final answer
    x = 633,589.45

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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.