Home / 872,187.60-1,308,281.40-819,656.40

Finding the Fourth Proportional to 872,187.60, 1,308,281.40 and 819,656.40

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Solution

The fourth proportional to 872,187.60, 1,308,281.40 and 819,656.40 is: 1,229,484.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,187.60 : 1,308,281.40 = 819,656.40 : x
  2. Step 2: Convert to fraction form
    872,187.60/1,308,281.40 = 819,656.40/x
  3. Step 3: Cross multiply
    872,187.60x = 1,308,281.40 × 819,656.40
  4. Step 4: Simplify right side
    872,187.60x = 1,072,341,222,510.96
  5. Step 5: Solve for x
    x = 1,072,341,222,510.96/872,187.60
  6. Step 6: Final answer
    x = 1,229,484.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.