Home / 903,773.79-1,355,423.09-429,515.55

Finding the Fourth Proportional to 903,773.79, 1,355,423.09 and 429,515.55

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Solution

The fourth proportional to 903,773.79, 1,355,423.09 and 429,515.55 is: 644,160.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,773.79 : 1,355,423.09 = 429,515.55 : x
  2. Step 2: Convert to fraction form
    903,773.79/1,355,423.09 = 429,515.55/x
  3. Step 3: Cross multiply
    903,773.79x = 1,355,423.09 × 429,515.55
  4. Step 4: Simplify right side
    903,773.79x = 582,175,291,836.47
  5. Step 5: Solve for x
    x = 582,175,291,836.47/903,773.79
  6. Step 6: Final answer
    x = 644,160.41

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1.5x scale

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.