Home / 1,339,851.65-1,849,077.95-766,878.71

Finding the Fourth Proportional to 1,339,851.65, 1,849,077.95 and 766,878.71

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Solution

The fourth proportional to 1,339,851.65, 1,849,077.95 and 766,878.71 is: 1,058,339.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,851.65 : 1,849,077.95 = 766,878.71 : x
  2. Step 2: Convert to fraction form
    1,339,851.65/1,849,077.95 = 766,878.71/x
  3. Step 3: Cross multiply
    1,339,851.65x = 1,849,077.95 × 766,878.71
  4. Step 4: Simplify right side
    1,339,851.65x = 1,418,018,499,905.66
  5. Step 5: Solve for x
    x = 1,418,018,499,905.66/1,339,851.65
  6. Step 6: Final answer
    x = 1,058,339.93

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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.