Home / 1,615,094.88-2,423,760.78-642,359.40

Finding the Fourth Proportional to 1,615,094.88, 2,423,760.78 and 642,359.40

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Solution

The fourth proportional to 1,615,094.88, 2,423,760.78 and 642,359.40 is: 963,983.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,094.88 : 2,423,760.78 = 642,359.40 : x
  2. Step 2: Convert to fraction form
    1,615,094.88/2,423,760.78 = 642,359.40/x
  3. Step 3: Cross multiply
    1,615,094.88x = 2,423,760.78 × 642,359.40
  4. Step 4: Simplify right side
    1,615,094.88x = 1,556,925,520,384.33
  5. Step 5: Solve for x
    x = 1,556,925,520,384.33/1,615,094.88
  6. Step 6: Final answer
    x = 963,983.94

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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.