Home / 648,527.02-895,231.08-419,103.20

Finding the Fourth Proportional to 648,527.02, 895,231.08 and 419,103.20

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Solution

The fourth proportional to 648,527.02, 895,231.08 and 419,103.20 is: 578,532.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,527.02 : 895,231.08 = 419,103.20 : x
  2. Step 2: Convert to fraction form
    648,527.02/895,231.08 = 419,103.20/x
  3. Step 3: Cross multiply
    648,527.02x = 895,231.08 × 419,103.20
  4. Step 4: Simplify right side
    648,527.02x = 375,194,212,605.53
  5. Step 5: Solve for x
    x = 375,194,212,605.53/648,527.02
  6. Step 6: Final answer
    x = 578,532.89

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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.