Home / 854,320.02-1,281,085.57-314,440.68

Finding the Fourth Proportional to 854,320.02, 1,281,085.57 and 314,440.68

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Solution

The fourth proportional to 854,320.02, 1,281,085.57 and 314,440.68 is: 471,515.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,320.02 : 1,281,085.57 = 314,440.68 : x
  2. Step 2: Convert to fraction form
    854,320.02/1,281,085.57 = 314,440.68/x
  3. Step 3: Cross multiply
    854,320.02x = 1,281,085.57 × 314,440.68
  4. Step 4: Simplify right side
    854,320.02x = 402,825,417,768.99
  5. Step 5: Solve for x
    x = 402,825,417,768.99/854,320.02
  6. Step 6: Final answer
    x = 471,515.84

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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.