Home / 642,082.29-886,062.69-355,596.23

Finding the Fourth Proportional to 642,082.29, 886,062.69 and 355,596.23

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Solution

The fourth proportional to 642,082.29, 886,062.69 and 355,596.23 is: 490,716.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,082.29 : 886,062.69 = 355,596.23 : x
  2. Step 2: Convert to fraction form
    642,082.29/886,062.69 = 355,596.23/x
  3. Step 3: Cross multiply
    642,082.29x = 886,062.69 × 355,596.23
  4. Step 4: Simplify right side
    642,082.29x = 315,080,547,677.35
  5. Step 5: Solve for x
    x = 315,080,547,677.35/642,082.29
  6. Step 6: Final answer
    x = 490,716.77

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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.