Home / 804,621.42-1,110,397.12-442,068.76

Finding the Fourth Proportional to 804,621.42, 1,110,397.12 and 442,068.76

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Solution

The fourth proportional to 804,621.42, 1,110,397.12 and 442,068.76 is: 610,065.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,621.42 : 1,110,397.12 = 442,068.76 : x
  2. Step 2: Convert to fraction form
    804,621.42/1,110,397.12 = 442,068.76/x
  3. Step 3: Cross multiply
    804,621.42x = 1,110,397.12 × 442,068.76
  4. Step 4: Simplify right side
    804,621.42x = 490,871,877,945.97
  5. Step 5: Solve for x
    x = 490,871,877,945.97/804,621.42
  6. Step 6: Final answer
    x = 610,065.64

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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.