Home / 820,576.35-1,132,502.40-458,075.43

Finding the Fourth Proportional to 820,576.35, 1,132,502.40 and 458,075.43

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Solution

The fourth proportional to 820,576.35, 1,132,502.40 and 458,075.43 is: 632,203.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,576.35 : 1,132,502.40 = 458,075.43 : x
  2. Step 2: Convert to fraction form
    820,576.35/1,132,502.40 = 458,075.43/x
  3. Step 3: Cross multiply
    820,576.35x = 1,132,502.40 × 458,075.43
  4. Step 4: Simplify right side
    820,576.35x = 518,771,523,856.03
  5. Step 5: Solve for x
    x = 518,771,523,856.03/820,576.35
  6. Step 6: Final answer
    x = 632,203.85

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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.