Home / 774,545.10-1,068,955.53-468,789.75

Finding the Fourth Proportional to 774,545.10, 1,068,955.53 and 468,789.75

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Solution

The fourth proportional to 774,545.10, 1,068,955.53 and 468,789.75 is: 646,980.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,545.10 : 1,068,955.53 = 468,789.75 : x
  2. Step 2: Convert to fraction form
    774,545.10/1,068,955.53 = 468,789.75/x
  3. Step 3: Cross multiply
    774,545.10x = 1,068,955.53 × 468,789.75
  4. Step 4: Simplify right side
    774,545.10x = 501,115,395,669.82
  5. Step 5: Solve for x
    x = 501,115,395,669.82/774,545.10
  6. Step 6: Final answer
    x = 646,980.27

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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.