Home / 885,055.20-1,220,200.22-578,604.72

Finding the Fourth Proportional to 885,055.20, 1,220,200.22 and 578,604.72

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Solution

The fourth proportional to 885,055.20, 1,220,200.22 and 578,604.72 is: 797,705.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,055.20 : 1,220,200.22 = 578,604.72 : x
  2. Step 2: Convert to fraction form
    885,055.20/1,220,200.22 = 578,604.72/x
  3. Step 3: Cross multiply
    885,055.20x = 1,220,200.22 × 578,604.72
  4. Step 4: Simplify right side
    885,055.20x = 706,013,606,637.04
  5. Step 5: Solve for x
    x = 706,013,606,637.04/885,055.20
  6. Step 6: Final answer
    x = 797,705.73

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.