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Finding the Fourth Proportional to 630,552.80, 870,155.60 and 344,077.60

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Solution

The fourth proportional to 630,552.80, 870,155.60 and 344,077.60 is: 474,823.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,552.80 : 870,155.60 = 344,077.60 : x
  2. Step 2: Convert to fraction form
    630,552.80/870,155.60 = 344,077.60/x
  3. Step 3: Cross multiply
    630,552.80x = 870,155.60 × 344,077.60
  4. Step 4: Simplify right side
    630,552.80x = 299,401,050,474.56
  5. Step 5: Solve for x
    x = 299,401,050,474.56/630,552.80
  6. Step 6: Final answer
    x = 474,823.12

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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.