Home / 1,220,688.60-1,684,482.80-676,792.64

Finding the Fourth Proportional to 1,220,688.60, 1,684,482.80 and 676,792.64

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Solution

The fourth proportional to 1,220,688.60, 1,684,482.80 and 676,792.64 is: 933,936.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,688.60 : 1,684,482.80 = 676,792.64 : x
  2. Step 2: Convert to fraction form
    1,220,688.60/1,684,482.80 = 676,792.64/x
  3. Step 3: Cross multiply
    1,220,688.60x = 1,684,482.80 × 676,792.64
  4. Step 4: Simplify right side
    1,220,688.60x = 1,140,045,561,246.59
  5. Step 5: Solve for x
    x = 1,140,045,561,246.59/1,220,688.60
  6. Step 6: Final answer
    x = 933,936.44

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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.