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Finding the Fourth Proportional to 555,748.56, 766,925.82 and 314,015.40

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Solution

The fourth proportional to 555,748.56, 766,925.82 and 314,015.40 is: 433,337.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,748.56 : 766,925.82 = 314,015.40 : x
  2. Step 2: Convert to fraction form
    555,748.56/766,925.82 = 314,015.40/x
  3. Step 3: Cross multiply
    555,748.56x = 766,925.82 × 314,015.40
  4. Step 4: Simplify right side
    555,748.56x = 240,826,518,137.63
  5. Step 5: Solve for x
    x = 240,826,518,137.63/555,748.56
  6. Step 6: Final answer
    x = 433,337.19

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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.