Home / 1,031,439-1,547,197.38-321,464.28

Finding the Fourth Proportional to 1,031,439, 1,547,197.38 and 321,464.28

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Solution

The fourth proportional to 1,031,439, 1,547,197.38 and 321,464.28 is: 482,208.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031,439 : 1,547,197.38 = 321,464.28 : x
  2. Step 2: Convert to fraction form
    1,031,439/1,547,197.38 = 321,464.28/x
  3. Step 3: Cross multiply
    1,031,439x = 1,547,197.38 × 321,464.28
  4. Step 4: Simplify right side
    1,031,439x = 497,368,691,779.59
  5. Step 5: Solve for x
    x = 497,368,691,779.59/1,031,439
  6. Step 6: Final answer
    x = 482,208.54

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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.