Home / 1,423,209.14-1,964,050.75-778,640.10

Finding the Fourth Proportional to 1,423,209.14, 1,964,050.75 and 778,640.10

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Solution

The fourth proportional to 1,423,209.14, 1,964,050.75 and 778,640.10 is: 1,074,535.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,209.14 : 1,964,050.75 = 778,640.10 : x
  2. Step 2: Convert to fraction form
    1,423,209.14/1,964,050.75 = 778,640.10/x
  3. Step 3: Cross multiply
    1,423,209.14x = 1,964,050.75 × 778,640.10
  4. Step 4: Simplify right side
    1,423,209.14x = 1,529,288,672,385.08
  5. Step 5: Solve for x
    x = 1,529,288,672,385.08/1,423,209.14
  6. Step 6: Final answer
    x = 1,074,535.45

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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.