Home / 1,258,169.40-1,887,254.10-977,887.80

Finding the Fourth Proportional to 1,258,169.40, 1,887,254.10 and 977,887.80

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Solution

The fourth proportional to 1,258,169.40, 1,887,254.10 and 977,887.80 is: 1,466,831.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,169.40 : 1,887,254.10 = 977,887.80 : x
  2. Step 2: Convert to fraction form
    1,258,169.40/1,887,254.10 = 977,887.80/x
  3. Step 3: Cross multiply
    1,258,169.40x = 1,887,254.10 × 977,887.80
  4. Step 4: Simplify right side
    1,258,169.40x = 1,845,522,759,889.98
  5. Step 5: Solve for x
    x = 1,845,522,759,889.98/1,258,169.40
  6. Step 6: Final answer
    x = 1,466,831.70

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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.