Home / 1,220,528.76-1,684,429.47-676,835.08

Finding the Fourth Proportional to 1,220,528.76, 1,684,429.47 and 676,835.08

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Solution

The fourth proportional to 1,220,528.76, 1,684,429.47 and 676,835.08 is: 934,087.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,528.76 : 1,684,429.47 = 676,835.08 : x
  2. Step 2: Convert to fraction form
    1,220,528.76/1,684,429.47 = 676,835.08/x
  3. Step 3: Cross multiply
    1,220,528.76x = 1,684,429.47 × 676,835.08
  4. Step 4: Simplify right side
    1,220,528.76x = 1,140,080,955,081.81
  5. Step 5: Solve for x
    x = 1,140,080,955,081.81/1,220,528.76
  6. Step 6: Final answer
    x = 934,087.74

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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.