Home / 697,907.69-1,042,133.90-554,139.78

Finding the Fourth Proportional to 697,907.69, 1,042,133.90 and 554,139.78

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Solution

The fourth proportional to 697,907.69, 1,042,133.90 and 554,139.78 is: 827,455.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,907.69 : 1,042,133.90 = 554,139.78 : x
  2. Step 2: Convert to fraction form
    697,907.69/1,042,133.90 = 554,139.78/x
  3. Step 3: Cross multiply
    697,907.69x = 1,042,133.90 × 554,139.78
  4. Step 4: Simplify right side
    697,907.69x = 577,487,852,376.88
  5. Step 5: Solve for x
    x = 577,487,852,376.88/697,907.69
  6. Step 6: Final answer
    x = 827,455.92

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.