Home / 776,566.71-1,071,690.39-432,420.39

Finding the Fourth Proportional to 776,566.71, 1,071,690.39 and 432,420.39

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Solution

The fourth proportional to 776,566.71, 1,071,690.39 and 432,420.39 is: 596,755.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,566.71 : 1,071,690.39 = 432,420.39 : x
  2. Step 2: Convert to fraction form
    776,566.71/1,071,690.39 = 432,420.39/x
  3. Step 3: Cross multiply
    776,566.71x = 1,071,690.39 × 432,420.39
  4. Step 4: Simplify right side
    776,566.71x = 463,420,776,403.05
  5. Step 5: Solve for x
    x = 463,420,776,403.05/776,566.71
  6. Step 6: Final answer
    x = 596,755.91

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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.