Home / 918,081.95-1,266,872.40-510,157.94

Finding the Fourth Proportional to 918,081.95, 1,266,872.40 and 510,157.94

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Solution

The fourth proportional to 918,081.95, 1,266,872.40 and 510,157.94 is: 703,973.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,081.95 : 1,266,872.40 = 510,157.94 : x
  2. Step 2: Convert to fraction form
    918,081.95/1,266,872.40 = 510,157.94/x
  3. Step 3: Cross multiply
    918,081.95x = 1,266,872.40 × 510,157.94
  4. Step 4: Simplify right side
    918,081.95x = 646,305,007,492.49
  5. Step 5: Solve for x
    x = 646,305,007,492.49/918,081.95
  6. Step 6: Final answer
    x = 703,973.12

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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.