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Finding the Fourth Proportional to 1,300,278.30, 1,946,615.85 and 927,030.30

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Solution

The fourth proportional to 1,300,278.30, 1,946,615.85 and 927,030.30 is: 1,387,835.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300,278.30 : 1,946,615.85 = 927,030.30 : x
  2. Step 2: Convert to fraction form
    1,300,278.30/1,946,615.85 = 927,030.30/x
  3. Step 3: Cross multiply
    1,300,278.30x = 1,946,615.85 × 927,030.30
  4. Step 4: Simplify right side
    1,300,278.30x = 1,804,571,875,410.26
  5. Step 5: Solve for x
    x = 1,804,571,875,410.26/1,300,278.30
  6. Step 6: Final answer
    x = 1,387,835.11

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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.