Home / 1,387,526.38-1,914,875.30-775,681.74

Finding the Fourth Proportional to 1,387,526.38, 1,914,875.30 and 775,681.74

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Solution

The fourth proportional to 1,387,526.38, 1,914,875.30 and 775,681.74 is: 1,070,490.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,526.38 : 1,914,875.30 = 775,681.74 : x
  2. Step 2: Convert to fraction form
    1,387,526.38/1,914,875.30 = 775,681.74/x
  3. Step 3: Cross multiply
    1,387,526.38x = 1,914,875.30 × 775,681.74
  4. Step 4: Simplify right side
    1,387,526.38x = 1,485,333,806,526.23
  5. Step 5: Solve for x
    x = 1,485,333,806,526.23/1,387,526.38
  6. Step 6: Final answer
    x = 1,070,490.50

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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.