Home / 908,742.78-1,254,069.90-521,527.32

Finding the Fourth Proportional to 908,742.78, 1,254,069.90 and 521,527.32

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Solution

The fourth proportional to 908,742.78, 1,254,069.90 and 521,527.32 is: 719,710.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,742.78 : 1,254,069.90 = 521,527.32 : x
  2. Step 2: Convert to fraction form
    908,742.78/1,254,069.90 = 521,527.32/x
  3. Step 3: Cross multiply
    908,742.78x = 1,254,069.90 × 521,527.32
  4. Step 4: Simplify right side
    908,742.78x = 654,031,714,039.67
  5. Step 5: Solve for x
    x = 654,031,714,039.67/908,742.78
  6. Step 6: Final answer
    x = 719,710.49

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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.