Home / 1,428,585.78-1,971,318.02-847,708.67

Finding the Fourth Proportional to 1,428,585.78, 1,971,318.02 and 847,708.67

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Solution

The fourth proportional to 1,428,585.78, 1,971,318.02 and 847,708.67 is: 1,169,760.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,585.78 : 1,971,318.02 = 847,708.67 : x
  2. Step 2: Convert to fraction form
    1,428,585.78/1,971,318.02 = 847,708.67/x
  3. Step 3: Cross multiply
    1,428,585.78x = 1,971,318.02 × 847,708.67
  4. Step 4: Simplify right side
    1,428,585.78x = 1,671,103,362,786.10
  5. Step 5: Solve for x
    x = 1,671,103,362,786.10/1,428,585.78
  6. Step 6: Final answer
    x = 1,169,760.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.