Home / 778,659.98-1,074,299.16-434,440.10

Finding the Fourth Proportional to 778,659.98, 1,074,299.16 and 434,440.10

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Solution

The fourth proportional to 778,659.98, 1,074,299.16 and 434,440.10 is: 599,386.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,659.98 : 1,074,299.16 = 434,440.10 : x
  2. Step 2: Convert to fraction form
    778,659.98/1,074,299.16 = 434,440.10/x
  3. Step 3: Cross multiply
    778,659.98x = 1,074,299.16 × 434,440.10
  4. Step 4: Simplify right side
    778,659.98x = 466,718,634,500.32
  5. Step 5: Solve for x
    x = 466,718,634,500.32/778,659.98
  6. Step 6: Final answer
    x = 599,386.96

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Double scale
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Similar ratio
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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.