Home / 805,363.20-1,208,822.40-490,435.20

Finding the Fourth Proportional to 805,363.20, 1,208,822.40 and 490,435.20

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Solution

The fourth proportional to 805,363.20, 1,208,822.40 and 490,435.20 is: 736,126.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,363.20 : 1,208,822.40 = 490,435.20 : x
  2. Step 2: Convert to fraction form
    805,363.20/1,208,822.40 = 490,435.20/x
  3. Step 3: Cross multiply
    805,363.20x = 1,208,822.40 × 490,435.20
  4. Step 4: Simplify right side
    805,363.20x = 592,849,055,508.48
  5. Step 5: Solve for x
    x = 592,849,055,508.48/805,363.20
  6. Step 6: Final answer
    x = 736,126.33

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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.