Home / 770,372.17-1,063,136.12-421,533.52

Finding the Fourth Proportional to 770,372.17, 1,063,136.12 and 421,533.52

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Solution

The fourth proportional to 770,372.17, 1,063,136.12 and 421,533.52 is: 581,728.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,372.17 : 1,063,136.12 = 421,533.52 : x
  2. Step 2: Convert to fraction form
    770,372.17/1,063,136.12 = 421,533.52/x
  3. Step 3: Cross multiply
    770,372.17x = 1,063,136.12 × 421,533.52
  4. Step 4: Simplify right side
    770,372.17x = 448,147,514,614.42
  5. Step 5: Solve for x
    x = 448,147,514,614.42/770,372.17
  6. Step 6: Final answer
    x = 581,728.59

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1.5x scale

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.