Home / 914,800.51-1,262,405.86-506,898.78

Finding the Fourth Proportional to 914,800.51, 1,262,405.86 and 506,898.78

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Solution

The fourth proportional to 914,800.51, 1,262,405.86 and 506,898.78 is: 699,509.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,800.51 : 1,262,405.86 = 506,898.78 : x
  2. Step 2: Convert to fraction form
    914,800.51/1,262,405.86 = 506,898.78/x
  3. Step 3: Cross multiply
    914,800.51x = 1,262,405.86 × 506,898.78
  4. Step 4: Simplify right side
    914,800.51x = 639,911,990,298.85
  5. Step 5: Solve for x
    x = 639,911,990,298.85/914,800.51
  6. Step 6: Final answer
    x = 699,509.87

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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.