Home / 803,115.78-1,108,113.93-480,703.38

Finding the Fourth Proportional to 803,115.78, 1,108,113.93 and 480,703.38

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Solution

The fourth proportional to 803,115.78, 1,108,113.93 and 480,703.38 is: 663,259.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,115.78 : 1,108,113.93 = 480,703.38 : x
  2. Step 2: Convert to fraction form
    803,115.78/1,108,113.93 = 480,703.38/x
  3. Step 3: Cross multiply
    803,115.78x = 1,108,113.93 × 480,703.38
  4. Step 4: Simplify right side
    803,115.78x = 532,674,111,576.08
  5. Step 5: Solve for x
    x = 532,674,111,576.08/803,115.78
  6. Step 6: Final answer
    x = 663,259.43

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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.