Home / 679,841.70-1,019,762.55-637,851.30

Finding the Fourth Proportional to 679,841.70, 1,019,762.55 and 637,851.30

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Solution

The fourth proportional to 679,841.70, 1,019,762.55 and 637,851.30 is: 956,776.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,841.70 : 1,019,762.55 = 637,851.30 : x
  2. Step 2: Convert to fraction form
    679,841.70/1,019,762.55 = 637,851.30/x
  3. Step 3: Cross multiply
    679,841.70x = 1,019,762.55 × 637,851.30
  4. Step 4: Simplify right side
    679,841.70x = 650,456,868,208.82
  5. Step 5: Solve for x
    x = 650,456,868,208.82/679,841.70
  6. Step 6: Final answer
    x = 956,776.95

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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.