Home / 1,199,580.12-1,655,420.40-655,718.10

Finding the Fourth Proportional to 1,199,580.12, 1,655,420.40 and 655,718.10

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Solution

The fourth proportional to 1,199,580.12, 1,655,420.40 and 655,718.10 is: 904,890.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,199,580.12 : 1,655,420.40 = 655,718.10 : x
  2. Step 2: Convert to fraction form
    1,199,580.12/1,655,420.40 = 655,718.10/x
  3. Step 3: Cross multiply
    1,199,580.12x = 1,655,420.40 × 655,718.10
  4. Step 4: Simplify right side
    1,199,580.12x = 1,085,489,119,389.24
  5. Step 5: Solve for x
    x = 1,085,489,119,389.24/1,199,580.12
  6. Step 6: Final answer
    x = 904,890.89

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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.