Home / 991,015.99-1,486,622.09-316,927.91

Finding the Fourth Proportional to 991,015.99, 1,486,622.09 and 316,927.91

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Solution

The fourth proportional to 991,015.99, 1,486,622.09 and 316,927.91 is: 475,423.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,015.99 : 1,486,622.09 = 316,927.91 : x
  2. Step 2: Convert to fraction form
    991,015.99/1,486,622.09 = 316,927.91/x
  3. Step 3: Cross multiply
    991,015.99x = 1,486,622.09 × 316,927.91
  4. Step 4: Simplify right side
    991,015.99x = 471,152,036,452.41
  5. Step 5: Solve for x
    x = 471,152,036,452.41/991,015.99
  6. Step 6: Final answer
    x = 475,423.24

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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.