Home / 1,759,985.40-2,639,978.10-637,908.60

Finding the Fourth Proportional to 1,759,985.40, 2,639,978.10 and 637,908.60

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Solution

The fourth proportional to 1,759,985.40, 2,639,978.10 and 637,908.60 is: 956,862.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,759,985.40 : 2,639,978.10 = 637,908.60 : x
  2. Step 2: Convert to fraction form
    1,759,985.40/2,639,978.10 = 637,908.60/x
  3. Step 3: Cross multiply
    1,759,985.40x = 2,639,978.10 × 637,908.60
  4. Step 4: Simplify right side
    1,759,985.40x = 1,684,064,733,801.66
  5. Step 5: Solve for x
    x = 1,684,064,733,801.66/1,759,985.40
  6. Step 6: Final answer
    x = 956,862.90

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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.