Home / 1,610,615.20-2,415,922.80-770,807.20

Finding the Fourth Proportional to 1,610,615.20, 2,415,922.80 and 770,807.20

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Solution

The fourth proportional to 1,610,615.20, 2,415,922.80 and 770,807.20 is: 1,156,210.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,610,615.20 : 2,415,922.80 = 770,807.20 : x
  2. Step 2: Convert to fraction form
    1,610,615.20/2,415,922.80 = 770,807.20/x
  3. Step 3: Cross multiply
    1,610,615.20x = 2,415,922.80 × 770,807.20
  4. Step 4: Simplify right side
    1,610,615.20x = 1,862,210,688,884.16
  5. Step 5: Solve for x
    x = 1,862,210,688,884.16/1,610,615.20
  6. Step 6: Final answer
    x = 1,156,210.80

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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.