Home / 784,034.70-1,175,018.68-310,461.72

Finding the Fourth Proportional to 784,034.70, 1,175,018.68 and 310,461.72

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Solution

The fourth proportional to 784,034.70, 1,175,018.68 and 310,461.72 is: 465,283.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,034.70 : 1,175,018.68 = 310,461.72 : x
  2. Step 2: Convert to fraction form
    784,034.70/1,175,018.68 = 310,461.72/x
  3. Step 3: Cross multiply
    784,034.70x = 1,175,018.68 × 310,461.72
  4. Step 4: Simplify right side
    784,034.70x = 364,798,320,424.93
  5. Step 5: Solve for x
    x = 364,798,320,424.93/784,034.70
  6. Step 6: Final answer
    x = 465,283.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.