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Finding the Fourth Proportional to 630,690.08, 870,340.18 and 344,212.22

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Solution

The fourth proportional to 630,690.08, 870,340.18 and 344,212.22 is: 475,006.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,690.08 : 870,340.18 = 344,212.22 : x
  2. Step 2: Convert to fraction form
    630,690.08/870,340.18 = 344,212.22/x
  3. Step 3: Cross multiply
    630,690.08x = 870,340.18 × 344,212.22
  4. Step 4: Simplify right side
    630,690.08x = 299,581,721,616.09
  5. Step 5: Solve for x
    x = 299,581,721,616.09/630,690.08
  6. Step 6: Final answer
    x = 475,006.24

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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.