Home / 1,139,778.29-1,572,897.23-630,480.66

Finding the Fourth Proportional to 1,139,778.29, 1,572,897.23 and 630,480.66

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Solution

The fourth proportional to 1,139,778.29, 1,572,897.23 and 630,480.66 is: 870,065.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,778.29 : 1,572,897.23 = 630,480.66 : x
  2. Step 2: Convert to fraction form
    1,139,778.29/1,572,897.23 = 630,480.66/x
  3. Step 3: Cross multiply
    1,139,778.29x = 1,572,897.23 × 630,480.66
  4. Step 4: Simplify right side
    1,139,778.29x = 991,681,289,390.11
  5. Step 5: Solve for x
    x = 991,681,289,390.11/1,139,778.29
  6. Step 6: Final answer
    x = 870,065.08

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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.