Home / 828,155.76-1,142,844-460,630.40

Finding the Fourth Proportional to 828,155.76, 1,142,844 and 460,630.40

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Solution

The fourth proportional to 828,155.76, 1,142,844 and 460,630.40 is: 635,663.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,155.76 : 1,142,844 = 460,630.40 : x
  2. Step 2: Convert to fraction form
    828,155.76/1,142,844 = 460,630.40/x
  3. Step 3: Cross multiply
    828,155.76x = 1,142,844 × 460,630.40
  4. Step 4: Simplify right side
    828,155.76x = 526,428,688,857.60
  5. Step 5: Solve for x
    x = 526,428,688,857.60/828,155.76
  6. Step 6: Final answer
    x = 635,663.86

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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.