Home / 877,892.20-1,315,931.10-477,687.40

Finding the Fourth Proportional to 877,892.20, 1,315,931.10 and 477,687.40

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Solution

The fourth proportional to 877,892.20, 1,315,931.10 and 477,687.40 is: 716,037.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,892.20 : 1,315,931.10 = 477,687.40 : x
  2. Step 2: Convert to fraction form
    877,892.20/1,315,931.10 = 477,687.40/x
  3. Step 3: Cross multiply
    877,892.20x = 1,315,931.10 × 477,687.40
  4. Step 4: Simplify right side
    877,892.20x = 628,603,705,738.14
  5. Step 5: Solve for x
    x = 628,603,705,738.14/877,892.20
  6. Step 6: Final answer
    x = 716,037.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.