Home / 780,061.30-1,170,091.95-306,762.10

Finding the Fourth Proportional to 780,061.30, 1,170,091.95 and 306,762.10

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Solution

The fourth proportional to 780,061.30, 1,170,091.95 and 306,762.10 is: 460,143.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,061.30 : 1,170,091.95 = 306,762.10 : x
  2. Step 2: Convert to fraction form
    780,061.30/1,170,091.95 = 306,762.10/x
  3. Step 3: Cross multiply
    780,061.30x = 1,170,091.95 × 306,762.10
  4. Step 4: Simplify right side
    780,061.30x = 358,939,863,775.10
  5. Step 5: Solve for x
    x = 358,939,863,775.10/780,061.30
  6. Step 6: Final answer
    x = 460,143.15

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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.