Home / 774,175.45-1,068,445.87-468,420.45

Finding the Fourth Proportional to 774,175.45, 1,068,445.87 and 468,420.45

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Solution

The fourth proportional to 774,175.45, 1,068,445.87 and 468,420.45 is: 646,470.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,175.45 : 1,068,445.87 = 468,420.45 : x
  2. Step 2: Convert to fraction form
    774,175.45/1,068,445.87 = 468,420.45/x
  3. Step 3: Cross multiply
    774,175.45x = 1,068,445.87 × 468,420.45
  4. Step 4: Simplify right side
    774,175.45x = 500,481,894,054.99
  5. Step 5: Solve for x
    x = 500,481,894,054.99/774,175.45
  6. Step 6: Final answer
    x = 646,470.89

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Double scale
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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.