Home / 1,387,952.95-1,915,364.24-776,106.89

Finding the Fourth Proportional to 1,387,952.95, 1,915,364.24 and 776,106.89

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Solution

The fourth proportional to 1,387,952.95, 1,915,364.24 and 776,106.89 is: 1,071,021.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,952.95 : 1,915,364.24 = 776,106.89 : x
  2. Step 2: Convert to fraction form
    1,387,952.95/1,915,364.24 = 776,106.89/x
  3. Step 3: Cross multiply
    1,387,952.95x = 1,915,364.24 × 776,106.89
  4. Step 4: Simplify right side
    1,387,952.95x = 1,486,527,379,643.08
  5. Step 5: Solve for x
    x = 1,486,527,379,643.08/1,387,952.95
  6. Step 6: Final answer
    x = 1,071,021.45

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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.