Home / 774,305.09-1,068,929.54-484,077.90

Finding the Fourth Proportional to 774,305.09, 1,068,929.54 and 484,077.90

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Solution

The fourth proportional to 774,305.09, 1,068,929.54 and 484,077.90 is: 668,270.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,305.09 : 1,068,929.54 = 484,077.90 : x
  2. Step 2: Convert to fraction form
    774,305.09/1,068,929.54 = 484,077.90/x
  3. Step 3: Cross multiply
    774,305.09x = 1,068,929.54 × 484,077.90
  4. Step 4: Simplify right side
    774,305.09x = 517,445,164,550.78
  5. Step 5: Solve for x
    x = 517,445,164,550.78/774,305.09
  6. Step 6: Final answer
    x = 668,270.39

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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.