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Finding the Fourth Proportional to 660,036.48, 910,774.80 and 369,607.56

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Solution

The fourth proportional to 660,036.48, 910,774.80 and 369,607.56 is: 510,016.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,036.48 : 910,774.80 = 369,607.56 : x
  2. Step 2: Convert to fraction form
    660,036.48/910,774.80 = 369,607.56/x
  3. Step 3: Cross multiply
    660,036.48x = 910,774.80 × 369,607.56
  4. Step 4: Simplify right side
    660,036.48x = 336,629,251,537.49
  5. Step 5: Solve for x
    x = 336,629,251,537.49/660,036.48
  6. Step 6: Final answer
    x = 510,016.13

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1.5x scale

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.