Home / 913,130.52-1,260,157.30-505,225.76

Finding the Fourth Proportional to 913,130.52, 1,260,157.30 and 505,225.76

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Solution

The fourth proportional to 913,130.52, 1,260,157.30 and 505,225.76 is: 697,232.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,130.52 : 1,260,157.30 = 505,225.76 : x
  2. Step 2: Convert to fraction form
    913,130.52/1,260,157.30 = 505,225.76/x
  3. Step 3: Cross multiply
    913,130.52x = 1,260,157.30 × 505,225.76
  4. Step 4: Simplify right side
    913,130.52x = 636,663,922,048.20
  5. Step 5: Solve for x
    x = 636,663,922,048.20/913,130.52
  6. Step 6: Final answer
    x = 697,232.12

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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.