Home / 918,416.07-1,267,619.83-510,660.86

Finding the Fourth Proportional to 918,416.07, 1,267,619.83 and 510,660.86

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Solution

The fourth proportional to 918,416.07, 1,267,619.83 and 510,660.86 is: 704,826.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,416.07 : 1,267,619.83 = 510,660.86 : x
  2. Step 2: Convert to fraction form
    918,416.07/1,267,619.83 = 510,660.86/x
  3. Step 3: Cross multiply
    918,416.07x = 1,267,619.83 × 510,660.86
  4. Step 4: Simplify right side
    918,416.07x = 647,323,824,926.10
  5. Step 5: Solve for x
    x = 647,323,824,926.10/918,416.07
  6. Step 6: Final answer
    x = 704,826.33

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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.