Home / 1,139,590.38-1,572,675.84-630,296.40

Finding the Fourth Proportional to 1,139,590.38, 1,572,675.84 and 630,296.40

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Solution

The fourth proportional to 1,139,590.38, 1,572,675.84 and 630,296.40 is: 869,831.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,590.38 : 1,572,675.84 = 630,296.40 : x
  2. Step 2: Convert to fraction form
    1,139,590.38/1,572,675.84 = 630,296.40/x
  3. Step 3: Cross multiply
    1,139,590.38x = 1,572,675.84 × 630,296.40
  4. Step 4: Simplify right side
    1,139,590.38x = 991,251,920,318.98
  5. Step 5: Solve for x
    x = 991,251,920,318.98/1,139,590.38
  6. Step 6: Final answer
    x = 869,831.77

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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.