Home / 788,663.52-1,087,222.80-561,915.36

Finding the Fourth Proportional to 788,663.52, 1,087,222.80 and 561,915.36

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Solution

The fourth proportional to 788,663.52, 1,087,222.80 and 561,915.36 is: 774,636.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,663.52 : 1,087,222.80 = 561,915.36 : x
  2. Step 2: Convert to fraction form
    788,663.52/1,087,222.80 = 561,915.36/x
  3. Step 3: Cross multiply
    788,663.52x = 1,087,222.80 × 561,915.36
  4. Step 4: Simplify right side
    788,663.52x = 610,927,191,062.21
  5. Step 5: Solve for x
    x = 610,927,191,062.21/788,663.52
  6. Step 6: Final answer
    x = 774,636.05

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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.