Home / 515,565.10-774,040.20-302,551.30

Finding the Fourth Proportional to 515,565.10, 774,040.20 and 302,551.30

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Solution

The fourth proportional to 515,565.10, 774,040.20 and 302,551.30 is: 454,233.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,565.10 : 774,040.20 = 302,551.30 : x
  2. Step 2: Convert to fraction form
    515,565.10/774,040.20 = 302,551.30/x
  3. Step 3: Cross multiply
    515,565.10x = 774,040.20 × 302,551.30
  4. Step 4: Simplify right side
    515,565.10x = 234,186,868,762.26
  5. Step 5: Solve for x
    x = 234,186,868,762.26/515,565.10
  6. Step 6: Final answer
    x = 454,233.36

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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.