Home / 908,698.68-1,254,012.48-500,815.08

Finding the Fourth Proportional to 908,698.68, 1,254,012.48 and 500,815.08

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Solution

The fourth proportional to 908,698.68, 1,254,012.48 and 500,815.08 is: 691,129.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,698.68 : 1,254,012.48 = 500,815.08 : x
  2. Step 2: Convert to fraction form
    908,698.68/1,254,012.48 = 500,815.08/x
  3. Step 3: Cross multiply
    908,698.68x = 1,254,012.48 × 500,815.08
  4. Step 4: Simplify right side
    908,698.68x = 628,028,360,492.20
  5. Step 5: Solve for x
    x = 628,028,360,492.20/908,698.68
  6. Step 6: Final answer
    x = 691,129.39

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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.