Home / 778,628.70-1,168,271.10-423,897.30

Finding the Fourth Proportional to 778,628.70, 1,168,271.10 and 423,897.30

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Solution

The fourth proportional to 778,628.70, 1,168,271.10 and 423,897.30 is: 636,024.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,628.70 : 1,168,271.10 = 423,897.30 : x
  2. Step 2: Convert to fraction form
    778,628.70/1,168,271.10 = 423,897.30/x
  3. Step 3: Cross multiply
    778,628.70x = 1,168,271.10 × 423,897.30
  4. Step 4: Simplify right side
    778,628.70x = 495,226,964,958.03
  5. Step 5: Solve for x
    x = 495,226,964,958.03/778,628.70
  6. Step 6: Final answer
    x = 636,024.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.