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Finding the Fourth Proportional to 889,203.30, 1,333,804.95 and 815,720.10

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Solution

The fourth proportional to 889,203.30, 1,333,804.95 and 815,720.10 is: 1,223,580.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,203.30 : 1,333,804.95 = 815,720.10 : x
  2. Step 2: Convert to fraction form
    889,203.30/1,333,804.95 = 815,720.10/x
  3. Step 3: Cross multiply
    889,203.30x = 1,333,804.95 × 815,720.10
  4. Step 4: Simplify right side
    889,203.30x = 1,088,011,507,194.49
  5. Step 5: Solve for x
    x = 1,088,011,507,194.49/889,203.30
  6. Step 6: Final answer
    x = 1,223,580.15

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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.