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Finding the Fourth Proportional to 662,053.92, 992,303.16 and 306,316.32

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Solution

The fourth proportional to 662,053.92, 992,303.16 and 306,316.32 is: 459,114.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,053.92 : 992,303.16 = 306,316.32 : x
  2. Step 2: Convert to fraction form
    662,053.92/992,303.16 = 306,316.32/x
  3. Step 3: Cross multiply
    662,053.92x = 992,303.16 × 306,316.32
  4. Step 4: Simplify right side
    662,053.92x = 303,958,652,295.57
  5. Step 5: Solve for x
    x = 303,958,652,295.57/662,053.92
  6. Step 6: Final answer
    x = 459,114.65

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.