Home / 803,655.02-1,205,453.28-324,089.66

Finding the Fourth Proportional to 803,655.02, 1,205,453.28 and 324,089.66

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Solution

The fourth proportional to 803,655.02, 1,205,453.28 and 324,089.66 is: 486,122.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,655.02 : 1,205,453.28 = 324,089.66 : x
  2. Step 2: Convert to fraction form
    803,655.02/1,205,453.28 = 324,089.66/x
  3. Step 3: Cross multiply
    803,655.02x = 1,205,453.28 × 324,089.66
  4. Step 4: Simplify right side
    803,655.02x = 390,674,943,661.09
  5. Step 5: Solve for x
    x = 390,674,943,661.09/803,655.02
  6. Step 6: Final answer
    x = 486,122.69

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Double scale
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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.