Home / 853,064.46-1,280,384.01-432,635.58

Finding the Fourth Proportional to 853,064.46, 1,280,384.01 and 432,635.58

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Solution

The fourth proportional to 853,064.46, 1,280,384.01 and 432,635.58 is: 649,352.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,064.46 : 1,280,384.01 = 432,635.58 : x
  2. Step 2: Convert to fraction form
    853,064.46/1,280,384.01 = 432,635.58/x
  3. Step 3: Cross multiply
    853,064.46x = 1,280,384.01 × 432,635.58
  4. Step 4: Simplify right side
    853,064.46x = 553,939,678,789.08
  5. Step 5: Solve for x
    x = 553,939,678,789.08/853,064.46
  6. Step 6: Final answer
    x = 649,352.66

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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.