Home / 630,748.80-870,546.18-376,116.39

Finding the Fourth Proportional to 630,748.80, 870,546.18 and 376,116.39

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Solution

The fourth proportional to 630,748.80, 870,546.18 and 376,116.39 is: 519,107.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,748.80 : 870,546.18 = 376,116.39 : x
  2. Step 2: Convert to fraction form
    630,748.80/870,546.18 = 376,116.39/x
  3. Step 3: Cross multiply
    630,748.80x = 870,546.18 × 376,116.39
  4. Step 4: Simplify right side
    630,748.80x = 327,426,686,549.89
  5. Step 5: Solve for x
    x = 327,426,686,549.89/630,748.80
  6. Step 6: Final answer
    x = 519,107.90

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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.