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Finding the Fourth Proportional to 630,546.75, 870,151.40 and 344,065.95

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Solution

The fourth proportional to 630,546.75, 870,151.40 and 344,065.95 is: 474,809.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,546.75 : 870,151.40 = 344,065.95 : x
  2. Step 2: Convert to fraction form
    630,546.75/870,151.40 = 344,065.95/x
  3. Step 3: Cross multiply
    630,546.75x = 870,151.40 × 344,065.95
  4. Step 4: Simplify right side
    630,546.75x = 299,389,466,364.50
  5. Step 5: Solve for x
    x = 299,389,466,364.50/630,546.75
  6. Step 6: Final answer
    x = 474,809.31

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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.