Home / 770,239.16-1,062,898.87-421,373.94

Finding the Fourth Proportional to 770,239.16, 1,062,898.87 and 421,373.94

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Solution

The fourth proportional to 770,239.16, 1,062,898.87 and 421,373.94 is: 581,478.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,239.16 : 1,062,898.87 = 421,373.94 : x
  2. Step 2: Convert to fraction form
    770,239.16/1,062,898.87 = 421,373.94/x
  3. Step 3: Cross multiply
    770,239.16x = 1,062,898.87 × 421,373.94
  4. Step 4: Simplify right side
    770,239.16x = 447,877,884,673.45
  5. Step 5: Solve for x
    x = 447,877,884,673.45/770,239.16
  6. Step 6: Final answer
    x = 581,478.98

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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.