Home / 919,200.90-1,378,801.35-877,866.60

Finding the Fourth Proportional to 919,200.90, 1,378,801.35 and 877,866.60

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Solution

The fourth proportional to 919,200.90, 1,378,801.35 and 877,866.60 is: 1,316,799.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,200.90 : 1,378,801.35 = 877,866.60 : x
  2. Step 2: Convert to fraction form
    919,200.90/1,378,801.35 = 877,866.60/x
  3. Step 3: Cross multiply
    919,200.90x = 1,378,801.35 × 877,866.60
  4. Step 4: Simplify right side
    919,200.90x = 1,210,403,653,199.91
  5. Step 5: Solve for x
    x = 1,210,403,653,199.91/919,200.90
  6. Step 6: Final answer
    x = 1,316,799.90

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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.