Home / 913,623.95-1,260,812.15-505,763.48

Finding the Fourth Proportional to 913,623.95, 1,260,812.15 and 505,763.48

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Solution

The fourth proportional to 913,623.95, 1,260,812.15 and 505,763.48 is: 697,959.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,623.95 : 1,260,812.15 = 505,763.48 : x
  2. Step 2: Convert to fraction form
    913,623.95/1,260,812.15 = 505,763.48/x
  3. Step 3: Cross multiply
    913,623.95x = 1,260,812.15 × 505,763.48
  4. Step 4: Simplify right side
    913,623.95x = 637,672,745,026.72
  5. Step 5: Solve for x
    x = 637,672,745,026.72/913,623.95
  6. Step 6: Final answer
    x = 697,959.75

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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.