Home / 776,925.18-1,072,139.85-432,759.78

Finding the Fourth Proportional to 776,925.18, 1,072,139.85 and 432,759.78

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Solution

The fourth proportional to 776,925.18, 1,072,139.85 and 432,759.78 is: 597,199.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,925.18 : 1,072,139.85 = 432,759.78 : x
  2. Step 2: Convert to fraction form
    776,925.18/1,072,139.85 = 432,759.78/x
  3. Step 3: Cross multiply
    776,925.18x = 1,072,139.85 × 432,759.78
  4. Step 4: Simplify right side
    776,925.18x = 463,979,005,615.23
  5. Step 5: Solve for x
    x = 463,979,005,615.23/776,925.18
  6. Step 6: Final answer
    x = 597,199.08

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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.