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Finding the Fourth Proportional to 630,536.24, 870,132.78 and 344,061.08

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Solution

The fourth proportional to 630,536.24, 870,132.78 and 344,061.08 is: 474,800.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,536.24 : 870,132.78 = 344,061.08 : x
  2. Step 2: Convert to fraction form
    630,536.24/870,132.78 = 344,061.08/x
  3. Step 3: Cross multiply
    630,536.24x = 870,132.78 × 344,061.08
  4. Step 4: Simplify right side
    630,536.24x = 299,378,824,030.20
  5. Step 5: Solve for x
    x = 299,378,824,030.20/630,536.24
  6. Step 6: Final answer
    x = 474,800.34

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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.