Home / 1,243,655.65-1,865,483.48-402,292.45

Finding the Fourth Proportional to 1,243,655.65, 1,865,483.48 and 402,292.45

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Solution

The fourth proportional to 1,243,655.65, 1,865,483.48 and 402,292.45 is: 603,438.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,655.65 : 1,865,483.48 = 402,292.45 : x
  2. Step 2: Convert to fraction form
    1,243,655.65/1,865,483.48 = 402,292.45/x
  3. Step 3: Cross multiply
    1,243,655.65x = 1,865,483.48 × 402,292.45
  4. Step 4: Simplify right side
    1,243,655.65x = 750,469,917,592.26
  5. Step 5: Solve for x
    x = 750,469,917,592.26/1,243,655.65
  6. Step 6: Final answer
    x = 603,438.68

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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.