Home / 1,223,885.14-1,688,956.02-680,109.46

Finding the Fourth Proportional to 1,223,885.14, 1,688,956.02 and 680,109.46

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Solution

The fourth proportional to 1,223,885.14, 1,688,956.02 and 680,109.46 is: 938,548.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,885.14 : 1,688,956.02 = 680,109.46 : x
  2. Step 2: Convert to fraction form
    1,223,885.14/1,688,956.02 = 680,109.46/x
  3. Step 3: Cross multiply
    1,223,885.14x = 1,688,956.02 × 680,109.46
  4. Step 4: Simplify right side
    1,223,885.14x = 1,148,674,966,725.95
  5. Step 5: Solve for x
    x = 1,148,674,966,725.95/1,223,885.14
  6. Step 6: Final answer
    x = 938,548.01

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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.