Home / 913,328.55-1,260,395.85-505,458.51

Finding the Fourth Proportional to 913,328.55, 1,260,395.85 and 505,458.51

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Solution

The fourth proportional to 913,328.55, 1,260,395.85 and 505,458.51 is: 697,534.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,328.55 : 1,260,395.85 = 505,458.51 : x
  2. Step 2: Convert to fraction form
    913,328.55/1,260,395.85 = 505,458.51/x
  3. Step 3: Cross multiply
    913,328.55x = 1,260,395.85 × 505,458.51
  4. Step 4: Simplify right side
    913,328.55x = 637,077,805,823.89
  5. Step 5: Solve for x
    x = 637,077,805,823.89/913,328.55
  6. Step 6: Final answer
    x = 697,534.10

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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.