Home / 778,495.14-1,074,298.80-456,419.70

Finding the Fourth Proportional to 778,495.14, 1,074,298.80 and 456,419.70

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Solution

The fourth proportional to 778,495.14, 1,074,298.80 and 456,419.70 is: 629,844.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,495.14 : 1,074,298.80 = 456,419.70 : x
  2. Step 2: Convert to fraction form
    778,495.14/1,074,298.80 = 456,419.70/x
  3. Step 3: Cross multiply
    778,495.14x = 1,074,298.80 × 456,419.70
  4. Step 4: Simplify right side
    778,495.14x = 490,331,136,006.36
  5. Step 5: Solve for x
    x = 490,331,136,006.36/778,495.14
  6. Step 6: Final answer
    x = 629,844.83

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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.