Home / 776,639.60-1,071,728.17-432,493.28

Finding the Fourth Proportional to 776,639.60, 1,071,728.17 and 432,493.28

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Solution

The fourth proportional to 776,639.60, 1,071,728.17 and 432,493.28 is: 596,821.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,639.60 : 1,071,728.17 = 432,493.28 : x
  2. Step 2: Convert to fraction form
    776,639.60/1,071,728.17 = 432,493.28/x
  3. Step 3: Cross multiply
    776,639.60x = 1,071,728.17 × 432,493.28
  4. Step 4: Simplify right side
    776,639.60x = 463,515,225,071.82
  5. Step 5: Solve for x
    x = 463,515,225,071.82/776,639.60
  6. Step 6: Final answer
    x = 596,821.52

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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.