Home / 1,636,543.36-2,455,150.38-689,915.80

Finding the Fourth Proportional to 1,636,543.36, 2,455,150.38 and 689,915.80

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Solution

The fourth proportional to 1,636,543.36, 2,455,150.38 and 689,915.80 is: 1,035,015.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,636,543.36 : 2,455,150.38 = 689,915.80 : x
  2. Step 2: Convert to fraction form
    1,636,543.36/2,455,150.38 = 689,915.80/x
  3. Step 3: Cross multiply
    1,636,543.36x = 2,455,150.38 × 689,915.80
  4. Step 4: Simplify right side
    1,636,543.36x = 1,693,847,038,538.00
  5. Step 5: Solve for x
    x = 1,693,847,038,538.00/1,636,543.36
  6. Step 6: Final answer
    x = 1,035,015.07

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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.