Home / 1,258,507.71-1,736,658.79-742,143.17

Finding the Fourth Proportional to 1,258,507.71, 1,736,658.79 and 742,143.17

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Solution

The fourth proportional to 1,258,507.71, 1,736,658.79 and 742,143.17 is: 1,024,109.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,507.71 : 1,736,658.79 = 742,143.17 : x
  2. Step 2: Convert to fraction form
    1,258,507.71/1,736,658.79 = 742,143.17/x
  3. Step 3: Cross multiply
    1,258,507.71x = 1,736,658.79 × 742,143.17
  4. Step 4: Simplify right side
    1,258,507.71x = 1,288,849,459,618.96
  5. Step 5: Solve for x
    x = 1,288,849,459,618.96/1,258,507.71
  6. Step 6: Final answer
    x = 1,024,109.31

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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.