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Finding the Fourth Proportional to 555,922.89, 767,168.10 and 310,904.91

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Solution

The fourth proportional to 555,922.89, 767,168.10 and 310,904.91 is: 429,045.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,922.89 : 767,168.10 = 310,904.91 : x
  2. Step 2: Convert to fraction form
    555,922.89/767,168.10 = 310,904.91/x
  3. Step 3: Cross multiply
    555,922.89x = 767,168.10 × 310,904.91
  4. Step 4: Simplify right side
    555,922.89x = 238,516,329,085.37
  5. Step 5: Solve for x
    x = 238,516,329,085.37/555,922.89
  6. Step 6: Final answer
    x = 429,045.71

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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.