Home / 730,497.60-1,095,746.40-431,121.60

Finding the Fourth Proportional to 730,497.60, 1,095,746.40 and 431,121.60

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Solution

The fourth proportional to 730,497.60, 1,095,746.40 and 431,121.60 is: 646,682.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,497.60 : 1,095,746.40 = 431,121.60 : x
  2. Step 2: Convert to fraction form
    730,497.60/1,095,746.40 = 431,121.60/x
  3. Step 3: Cross multiply
    730,497.60x = 1,095,746.40 × 431,121.60
  4. Step 4: Simplify right side
    730,497.60x = 472,399,941,162.24
  5. Step 5: Solve for x
    x = 472,399,941,162.24/730,497.60
  6. Step 6: Final answer
    x = 646,682.40

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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.