Home / 805,878.20-1,207,434.90-384,246.20

Finding the Fourth Proportional to 805,878.20, 1,207,434.90 and 384,246.20

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Solution

The fourth proportional to 805,878.20, 1,207,434.90 and 384,246.20 is: 575,710.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,878.20 : 1,207,434.90 = 384,246.20 : x
  2. Step 2: Convert to fraction form
    805,878.20/1,207,434.90 = 384,246.20/x
  3. Step 3: Cross multiply
    805,878.20x = 1,207,434.90 × 384,246.20
  4. Step 4: Simplify right side
    805,878.20x = 463,952,272,072.38
  5. Step 5: Solve for x
    x = 463,952,272,072.38/805,878.20
  6. Step 6: Final answer
    x = 575,710.17

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1.5x scale

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.