Home / 826,064.64-1,139,988.86-463,515.31

Finding the Fourth Proportional to 826,064.64, 1,139,988.86 and 463,515.31

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Solution

The fourth proportional to 826,064.64, 1,139,988.86 and 463,515.31 is: 639,662.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,064.64 : 1,139,988.86 = 463,515.31 : x
  2. Step 2: Convert to fraction form
    826,064.64/1,139,988.86 = 463,515.31/x
  3. Step 3: Cross multiply
    826,064.64x = 1,139,988.86 × 463,515.31
  4. Step 4: Simplify right side
    826,064.64x = 528,402,293,395.78
  5. Step 5: Solve for x
    x = 528,402,293,395.78/826,064.64
  6. Step 6: Final answer
    x = 639,662.16

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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.