Home / 913,670.74-1,260,850.30-505,763.85

Finding the Fourth Proportional to 913,670.74, 1,260,850.30 and 505,763.85

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Solution

The fourth proportional to 913,670.74, 1,260,850.30 and 505,763.85 is: 697,945.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,670.74 : 1,260,850.30 = 505,763.85 : x
  2. Step 2: Convert to fraction form
    913,670.74/1,260,850.30 = 505,763.85/x
  3. Step 3: Cross multiply
    913,670.74x = 1,260,850.30 × 505,763.85
  4. Step 4: Simplify right side
    913,670.74x = 637,692,502,001.66
  5. Step 5: Solve for x
    x = 637,692,502,001.66/913,670.74
  6. Step 6: Final answer
    x = 697,945.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.