Home / 915,518.88-1,263,546.80-507,711.42

Finding the Fourth Proportional to 915,518.88, 1,263,546.80 and 507,711.42

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Solution

The fourth proportional to 915,518.88, 1,263,546.80 and 507,711.42 is: 700,714.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,518.88 : 1,263,546.80 = 507,711.42 : x
  2. Step 2: Convert to fraction form
    915,518.88/1,263,546.80 = 507,711.42/x
  3. Step 3: Cross multiply
    915,518.88x = 1,263,546.80 × 507,711.42
  4. Step 4: Simplify right side
    915,518.88x = 641,517,140,064.46
  5. Step 5: Solve for x
    x = 641,517,140,064.46/915,518.88
  6. Step 6: Final answer
    x = 700,714.27

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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.