Home / 1,201,274.72-1,657,184.76-742,223.40

Finding the Fourth Proportional to 1,201,274.72, 1,657,184.76 and 742,223.40

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Solution

The fourth proportional to 1,201,274.72, 1,657,184.76 and 742,223.40 is: 1,023,913.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,274.72 : 1,657,184.76 = 742,223.40 : x
  2. Step 2: Convert to fraction form
    1,201,274.72/1,657,184.76 = 742,223.40/x
  3. Step 3: Cross multiply
    1,201,274.72x = 1,657,184.76 × 742,223.40
  4. Step 4: Simplify right side
    1,201,274.72x = 1,230,001,306,995.38
  5. Step 5: Solve for x
    x = 1,230,001,306,995.38/1,201,274.72
  6. Step 6: Final answer
    x = 1,023,913.42

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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.