Home / 804,051.81-1,110,110.76-498,454.79

Finding the Fourth Proportional to 804,051.81, 1,110,110.76 and 498,454.79

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Solution

The fourth proportional to 804,051.81, 1,110,110.76 and 498,454.79 is: 688,189.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,051.81 : 1,110,110.76 = 498,454.79 : x
  2. Step 2: Convert to fraction form
    804,051.81/1,110,110.76 = 498,454.79/x
  3. Step 3: Cross multiply
    804,051.81x = 1,110,110.76 × 498,454.79
  4. Step 4: Simplify right side
    804,051.81x = 553,340,020,201.99
  5. Step 5: Solve for x
    x = 553,340,020,201.99/804,051.81
  6. Step 6: Final answer
    x = 688,189.51

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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.