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Finding the Fourth Proportional to 630,632.17, 870,290.76 and 344,170.81

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Solution

The fourth proportional to 630,632.17, 870,290.76 and 344,170.81 is: 474,965.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,632.17 : 870,290.76 = 344,170.81 : x
  2. Step 2: Convert to fraction form
    630,632.17/870,290.76 = 344,170.81/x
  3. Step 3: Cross multiply
    630,632.17x = 870,290.76 × 344,170.81
  4. Step 4: Simplify right side
    630,632.17x = 299,528,675,804.72
  5. Step 5: Solve for x
    x = 299,528,675,804.72/630,632.17
  6. Step 6: Final answer
    x = 474,965.74

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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.