Home / 1,205,019.90-1,662,927.32-688,784.83

Finding the Fourth Proportional to 1,205,019.90, 1,662,927.32 and 688,784.83

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Solution

The fourth proportional to 1,205,019.90, 1,662,927.32 and 688,784.83 is: 950,522.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,019.90 : 1,662,927.32 = 688,784.83 : x
  2. Step 2: Convert to fraction form
    1,205,019.90/1,662,927.32 = 688,784.83/x
  3. Step 3: Cross multiply
    1,205,019.90x = 1,662,927.32 × 688,784.83
  4. Step 4: Simplify right side
    1,205,019.90x = 1,145,399,108,973.20
  5. Step 5: Solve for x
    x = 1,145,399,108,973.20/1,205,019.90
  6. Step 6: Final answer
    x = 950,522.98

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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.