Home / 779,905.20-1,169,274.60-425,319.60

Finding the Fourth Proportional to 779,905.20, 1,169,274.60 and 425,319.60

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Solution

The fourth proportional to 779,905.20, 1,169,274.60 and 425,319.60 is: 637,661.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,905.20 : 1,169,274.60 = 425,319.60 : x
  2. Step 2: Convert to fraction form
    779,905.20/1,169,274.60 = 425,319.60/x
  3. Step 3: Cross multiply
    779,905.20x = 1,169,274.60 × 425,319.60
  4. Step 4: Simplify right side
    779,905.20x = 497,315,405,162.16
  5. Step 5: Solve for x
    x = 497,315,405,162.16/779,905.20
  6. Step 6: Final answer
    x = 637,661.35

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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.