Home / 744,037.20-1,116,055.80-520,088.40

Finding the Fourth Proportional to 744,037.20, 1,116,055.80 and 520,088.40

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Solution

The fourth proportional to 744,037.20, 1,116,055.80 and 520,088.40 is: 780,132.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,037.20 : 1,116,055.80 = 520,088.40 : x
  2. Step 2: Convert to fraction form
    744,037.20/1,116,055.80 = 520,088.40/x
  3. Step 3: Cross multiply
    744,037.20x = 1,116,055.80 × 520,088.40
  4. Step 4: Simplify right side
    744,037.20x = 580,447,675,332.72
  5. Step 5: Solve for x
    x = 580,447,675,332.72/744,037.20
  6. Step 6: Final answer
    x = 780,132.60

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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.