Home / 390,835.74-586,296.09-124,533.66

Finding the Fourth Proportional to 390,835.74, 586,296.09 and 124,533.66

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Solution

The fourth proportional to 390,835.74, 586,296.09 and 124,533.66 is: 186,814.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,835.74 : 586,296.09 = 124,533.66 : x
  2. Step 2: Convert to fraction form
    390,835.74/586,296.09 = 124,533.66/x
  3. Step 3: Cross multiply
    390,835.74x = 586,296.09 × 124,533.66
  4. Step 4: Simplify right side
    390,835.74x = 73,013,597,931.39
  5. Step 5: Solve for x
    x = 73,013,597,931.39/390,835.74
  6. Step 6: Final answer
    x = 186,814.03

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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.