Home / 920,389.70-1,380,679.02-352,248.71

Finding the Fourth Proportional to 920,389.70, 1,380,679.02 and 352,248.71

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Solution

The fourth proportional to 920,389.70, 1,380,679.02 and 352,248.71 is: 528,409.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,389.70 : 1,380,679.02 = 352,248.71 : x
  2. Step 2: Convert to fraction form
    920,389.70/1,380,679.02 = 352,248.71/x
  3. Step 3: Cross multiply
    920,389.70x = 1,380,679.02 × 352,248.71
  4. Step 4: Simplify right side
    920,389.70x = 486,342,403,719.06
  5. Step 5: Solve for x
    x = 486,342,403,719.06/920,389.70
  6. Step 6: Final answer
    x = 528,409.22

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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.