Home / 1,263,018.84-1,742,875.02-689,937.36

Finding the Fourth Proportional to 1,263,018.84, 1,742,875.02 and 689,937.36

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Solution

The fourth proportional to 1,263,018.84, 1,742,875.02 and 689,937.36 is: 952,063.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,018.84 : 1,742,875.02 = 689,937.36 : x
  2. Step 2: Convert to fraction form
    1,263,018.84/1,742,875.02 = 689,937.36/x
  3. Step 3: Cross multiply
    1,263,018.84x = 1,742,875.02 × 689,937.36
  4. Step 4: Simplify right side
    1,263,018.84x = 1,202,474,590,108.75
  5. Step 5: Solve for x
    x = 1,202,474,590,108.75/1,263,018.84
  6. Step 6: Final answer
    x = 952,063.86

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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.