Home / 1,220,732.48-1,684,580.64-676,870.40

Finding the Fourth Proportional to 1,220,732.48, 1,684,580.64 and 676,870.40

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Solution

The fourth proportional to 1,220,732.48, 1,684,580.64 and 676,870.40 is: 934,064.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,732.48 : 1,684,580.64 = 676,870.40 : x
  2. Step 2: Convert to fraction form
    1,220,732.48/1,684,580.64 = 676,870.40/x
  3. Step 3: Cross multiply
    1,220,732.48x = 1,684,580.64 × 676,870.40
  4. Step 4: Simplify right side
    1,220,732.48x = 1,140,242,771,629.06
  5. Step 5: Solve for x
    x = 1,140,242,771,629.06/1,220,732.48
  6. Step 6: Final answer
    x = 934,064.42

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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.