Home / 805,087.20-1,208,408.40-490,159.20

Finding the Fourth Proportional to 805,087.20, 1,208,408.40 and 490,159.20

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Solution

The fourth proportional to 805,087.20, 1,208,408.40 and 490,159.20 is: 735,712.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,087.20 : 1,208,408.40 = 490,159.20 : x
  2. Step 2: Convert to fraction form
    805,087.20/1,208,408.40 = 490,159.20/x
  3. Step 3: Cross multiply
    805,087.20x = 1,208,408.40 × 490,159.20
  4. Step 4: Simplify right side
    805,087.20x = 592,312,494,617.28
  5. Step 5: Solve for x
    x = 592,312,494,617.28/805,087.20
  6. Step 6: Final answer
    x = 735,712.22

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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.