Home / 1,044,140.80-1,566,211.20-778,420.30

Finding the Fourth Proportional to 1,044,140.80, 1,566,211.20 and 778,420.30

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Solution

The fourth proportional to 1,044,140.80, 1,566,211.20 and 778,420.30 is: 1,167,630.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044,140.80 : 1,566,211.20 = 778,420.30 : x
  2. Step 2: Convert to fraction form
    1,044,140.80/1,566,211.20 = 778,420.30/x
  3. Step 3: Cross multiply
    1,044,140.80x = 1,566,211.20 × 778,420.30
  4. Step 4: Simplify right side
    1,044,140.80x = 1,219,170,592,167.36
  5. Step 5: Solve for x
    x = 1,219,170,592,167.36/1,044,140.80
  6. Step 6: Final answer
    x = 1,167,630.45

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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.