Home / 1,395,323.90-2,090,835.45-1,038,664.70

Finding the Fourth Proportional to 1,395,323.90, 2,090,835.45 and 1,038,664.70

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Solution

The fourth proportional to 1,395,323.90, 2,090,835.45 and 1,038,664.70 is: 1,556,396.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,323.90 : 2,090,835.45 = 1,038,664.70 : x
  2. Step 2: Convert to fraction form
    1,395,323.90/2,090,835.45 = 1,038,664.70/x
  3. Step 3: Cross multiply
    1,395,323.90x = 2,090,835.45 × 1,038,664.70
  4. Step 4: Simplify right side
    1,395,323.90x = 2,171,676,975,423.61
  5. Step 5: Solve for x
    x = 2,171,676,975,423.61/1,395,323.90
  6. Step 6: Final answer
    x = 1,556,396.31

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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.