Home / 771,395.06-1,157,838.89-372,316.76

Finding the Fourth Proportional to 771,395.06, 1,157,838.89 and 372,316.76

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Solution

The fourth proportional to 771,395.06, 1,157,838.89 and 372,316.76 is: 558,835.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,395.06 : 1,157,838.89 = 372,316.76 : x
  2. Step 2: Convert to fraction form
    771,395.06/1,157,838.89 = 372,316.76/x
  3. Step 3: Cross multiply
    771,395.06x = 1,157,838.89 × 372,316.76
  4. Step 4: Simplify right side
    771,395.06x = 431,082,816,476.02
  5. Step 5: Solve for x
    x = 431,082,816,476.02/771,395.06
  6. Step 6: Final answer
    x = 558,835.34

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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.