Home / 1,289,549.24-1,779,058.32-779,365.88

Finding the Fourth Proportional to 1,289,549.24, 1,779,058.32 and 779,365.88

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Solution

The fourth proportional to 1,289,549.24, 1,779,058.32 and 779,365.88 is: 1,075,210.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,549.24 : 1,779,058.32 = 779,365.88 : x
  2. Step 2: Convert to fraction form
    1,289,549.24/1,779,058.32 = 779,365.88/x
  3. Step 3: Cross multiply
    1,289,549.24x = 1,779,058.32 × 779,365.88
  4. Step 4: Simplify right side
    1,289,549.24x = 1,386,537,353,138.12
  5. Step 5: Solve for x
    x = 1,386,537,353,138.12/1,289,549.24
  6. Step 6: Final answer
    x = 1,075,210.86

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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.