Home / 913,707.86-1,260,926.81-505,816.50

Finding the Fourth Proportional to 913,707.86, 1,260,926.81 and 505,816.50

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Solution

The fourth proportional to 913,707.86, 1,260,926.81 and 505,816.50 is: 698,032.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,707.86 : 1,260,926.81 = 505,816.50 : x
  2. Step 2: Convert to fraction form
    913,707.86/1,260,926.81 = 505,816.50/x
  3. Step 3: Cross multiply
    913,707.86x = 1,260,926.81 × 505,816.50
  4. Step 4: Simplify right side
    913,707.86x = 637,797,587,054.91
  5. Step 5: Solve for x
    x = 637,797,587,054.91/913,707.86
  6. Step 6: Final answer
    x = 698,032.29

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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.