Home / 1,239,717.50-1,710,752.56-688,468.20

Finding the Fourth Proportional to 1,239,717.50, 1,710,752.56 and 688,468.20

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Solution

The fourth proportional to 1,239,717.50, 1,710,752.56 and 688,468.20 is: 950,054.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,717.50 : 1,710,752.56 = 688,468.20 : x
  2. Step 2: Convert to fraction form
    1,239,717.50/1,710,752.56 = 688,468.20/x
  3. Step 3: Cross multiply
    1,239,717.50x = 1,710,752.56 × 688,468.20
  4. Step 4: Simplify right side
    1,239,717.50x = 1,177,798,742,904.50
  5. Step 5: Solve for x
    x = 1,177,798,742,904.50/1,239,717.50
  6. Step 6: Final answer
    x = 950,054.14

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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.