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Finding the Fourth Proportional to 630,730.59, 870,399.43 and 344,245.74

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Solution

The fourth proportional to 630,730.59, 870,399.43 and 344,245.74 is: 475,054.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,730.59 : 870,399.43 = 344,245.74 : x
  2. Step 2: Convert to fraction form
    630,730.59/870,399.43 = 344,245.74/x
  3. Step 3: Cross multiply
    630,730.59x = 870,399.43 × 344,245.74
  4. Step 4: Simplify right side
    630,730.59x = 299,631,295,875.93
  5. Step 5: Solve for x
    x = 299,631,295,875.93/630,730.59
  6. Step 6: Final answer
    x = 475,054.33

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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.