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Finding the Fourth Proportional to 1,235,748.80, 1,853,623.20 and 760,894.40

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Solution

The fourth proportional to 1,235,748.80, 1,853,623.20 and 760,894.40 is: 1,141,341.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,748.80 : 1,853,623.20 = 760,894.40 : x
  2. Step 2: Convert to fraction form
    1,235,748.80/1,853,623.20 = 760,894.40/x
  3. Step 3: Cross multiply
    1,235,748.80x = 1,853,623.20 × 760,894.40
  4. Step 4: Simplify right side
    1,235,748.80x = 1,410,411,512,590.08
  5. Step 5: Solve for x
    x = 1,410,411,512,590.08/1,235,748.80
  6. Step 6: Final answer
    x = 1,141,341.60

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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.