Home / 991,580.79-1,367,877.83-647,618.24

Finding the Fourth Proportional to 991,580.79, 1,367,877.83 and 647,618.24

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Solution

The fourth proportional to 991,580.79, 1,367,877.83 and 647,618.24 is: 893,384.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,580.79 : 1,367,877.83 = 647,618.24 : x
  2. Step 2: Convert to fraction form
    991,580.79/1,367,877.83 = 647,618.24/x
  3. Step 3: Cross multiply
    991,580.79x = 1,367,877.83 × 647,618.24
  4. Step 4: Simplify right side
    991,580.79x = 885,862,628,929.76
  5. Step 5: Solve for x
    x = 885,862,628,929.76/991,580.79
  6. Step 6: Final answer
    x = 893,384.22

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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.