Home / 777,537.18-1,072,996.53-438,114.78

Finding the Fourth Proportional to 777,537.18, 1,072,996.53 and 438,114.78

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Solution

The fourth proportional to 777,537.18, 1,072,996.53 and 438,114.78 is: 604,595.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,537.18 : 1,072,996.53 = 438,114.78 : x
  2. Step 2: Convert to fraction form
    777,537.18/1,072,996.53 = 438,114.78/x
  3. Step 3: Cross multiply
    777,537.18x = 1,072,996.53 × 438,114.78
  4. Step 4: Simplify right side
    777,537.18x = 470,095,638,681.71
  5. Step 5: Solve for x
    x = 470,095,638,681.71/777,537.18
  6. Step 6: Final answer
    x = 604,595.70

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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.