Home / 438,391.85-604,876.19-302,382.32

Finding the Fourth Proportional to 438,391.85, 604,876.19 and 302,382.32

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Solution

The fourth proportional to 438,391.85, 604,876.19 and 302,382.32 is: 417,215.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,391.85 : 604,876.19 = 302,382.32 : x
  2. Step 2: Convert to fraction form
    438,391.85/604,876.19 = 302,382.32/x
  3. Step 3: Cross multiply
    438,391.85x = 604,876.19 × 302,382.32
  4. Step 4: Simplify right side
    438,391.85x = 182,903,861,108.67
  5. Step 5: Solve for x
    x = 182,903,861,108.67/438,391.85
  6. Step 6: Final answer
    x = 417,215.47

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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.