Home / 688,280.90-1,031,918.07-463,081.46

Finding the Fourth Proportional to 688,280.90, 1,031,918.07 and 463,081.46

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Solution

The fourth proportional to 688,280.90, 1,031,918.07 and 463,081.46 is: 694,283.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,280.90 : 1,031,918.07 = 463,081.46 : x
  2. Step 2: Convert to fraction form
    688,280.90/1,031,918.07 = 463,081.46/x
  3. Step 3: Cross multiply
    688,280.90x = 1,031,918.07 × 463,081.46
  4. Step 4: Simplify right side
    688,280.90x = 477,862,126,455.98
  5. Step 5: Solve for x
    x = 477,862,126,455.98/688,280.90
  6. Step 6: Final answer
    x = 694,283.58

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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.