Home / 906,315.12-1,356,515.64-666,365.40

Finding the Fourth Proportional to 906,315.12, 1,356,515.64 and 666,365.40

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Solution

The fourth proportional to 906,315.12, 1,356,515.64 and 666,365.40 is: 997,373.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,315.12 : 1,356,515.64 = 666,365.40 : x
  2. Step 2: Convert to fraction form
    906,315.12/1,356,515.64 = 666,365.40/x
  3. Step 3: Cross multiply
    906,315.12x = 1,356,515.64 × 666,365.40
  4. Step 4: Simplify right side
    906,315.12x = 903,935,087,054.86
  5. Step 5: Solve for x
    x = 903,935,087,054.86/906,315.12
  6. Step 6: Final answer
    x = 997,373.95

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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.