Home / 1,220,289.79-1,683,822.90-676,425.25

Finding the Fourth Proportional to 1,220,289.79, 1,683,822.90 and 676,425.25

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Solution

The fourth proportional to 1,220,289.79, 1,683,822.90 and 676,425.25 is: 933,368.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,289.79 : 1,683,822.90 = 676,425.25 : x
  2. Step 2: Convert to fraction form
    1,220,289.79/1,683,822.90 = 676,425.25/x
  3. Step 3: Cross multiply
    1,220,289.79x = 1,683,822.90 × 676,425.25
  4. Step 4: Simplify right side
    1,220,289.79x = 1,138,980,326,088.22
  5. Step 5: Solve for x
    x = 1,138,980,326,088.22/1,220,289.79
  6. Step 6: Final answer
    x = 933,368.73

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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.