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Finding the Fourth Proportional to 768,646.88, 1,151,590.08 and 468,972.80

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Solution

The fourth proportional to 768,646.88, 1,151,590.08 and 468,972.80 is: 702,617.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,646.88 : 1,151,590.08 = 468,972.80 : x
  2. Step 2: Convert to fraction form
    768,646.88/1,151,590.08 = 468,972.80/x
  3. Step 3: Cross multiply
    768,646.88x = 1,151,590.08 × 468,972.80
  4. Step 4: Simplify right side
    768,646.88x = 540,064,424,269.82
  5. Step 5: Solve for x
    x = 540,064,424,269.82/768,646.88
  6. Step 6: Final answer
    x = 702,617.08

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1.5x scale

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.