Home / 913,510.10-1,260,628.62-505,603.22

Finding the Fourth Proportional to 913,510.10, 1,260,628.62 and 505,603.22

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Solution

The fourth proportional to 913,510.10, 1,260,628.62 and 505,603.22 is: 697,723.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,510.10 : 1,260,628.62 = 505,603.22 : x
  2. Step 2: Convert to fraction form
    913,510.10/1,260,628.62 = 505,603.22/x
  3. Step 3: Cross multiply
    913,510.10x = 1,260,628.62 × 505,603.22
  4. Step 4: Simplify right side
    913,510.10x = 637,377,889,496.16
  5. Step 5: Solve for x
    x = 637,377,889,496.16/913,510.10
  6. Step 6: Final answer
    x = 697,723.97

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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.