Home / 1,031,435-1,547,191.38-321,460.28

Finding the Fourth Proportional to 1,031,435, 1,547,191.38 and 321,460.28

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Solution

The fourth proportional to 1,031,435, 1,547,191.38 and 321,460.28 is: 482,202.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031,435 : 1,547,191.38 = 321,460.28 : x
  2. Step 2: Convert to fraction form
    1,031,435/1,547,191.38 = 321,460.28/x
  3. Step 3: Cross multiply
    1,031,435x = 1,547,191.38 × 321,460.28
  4. Step 4: Simplify right side
    1,031,435x = 497,360,574,228.39
  5. Step 5: Solve for x
    x = 497,360,574,228.39/1,031,435
  6. Step 6: Final answer
    x = 482,202.54

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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.