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Finding the Fourth Proportional to 1,404,848.89, 1,938,697.50 and 760,269.12

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Solution

The fourth proportional to 1,404,848.89, 1,938,697.50 and 760,269.12 is: 1,049,174.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,404,848.89 : 1,938,697.50 = 760,269.12 : x
  2. Step 2: Convert to fraction form
    1,404,848.89/1,938,697.50 = 760,269.12/x
  3. Step 3: Cross multiply
    1,404,848.89x = 1,938,697.50 × 760,269.12
  4. Step 4: Simplify right side
    1,404,848.89x = 1,473,931,842,271.20
  5. Step 5: Solve for x
    x = 1,473,931,842,271.20/1,404,848.89
  6. Step 6: Final answer
    x = 1,049,174.65

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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.