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Finding the Fourth Proportional to 630,622.66, 870,277.62 and 344,161.22

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Solution

The fourth proportional to 630,622.66, 870,277.62 and 344,161.22 is: 474,952.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,622.66 : 870,277.62 = 344,161.22 : x
  2. Step 2: Convert to fraction form
    630,622.66/870,277.62 = 344,161.22/x
  3. Step 3: Cross multiply
    630,622.66x = 870,277.62 × 344,161.22
  4. Step 4: Simplify right side
    630,622.66x = 299,515,807,437.90
  5. Step 5: Solve for x
    x = 299,515,807,437.90/630,622.66
  6. Step 6: Final answer
    x = 474,952.50

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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.