Home / 1,178,847.64-1,626,809.72-642,303.64

Finding the Fourth Proportional to 1,178,847.64, 1,626,809.72 and 642,303.64

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Solution

The fourth proportional to 1,178,847.64, 1,626,809.72 and 642,303.64 is: 886,379.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,847.64 : 1,626,809.72 = 642,303.64 : x
  2. Step 2: Convert to fraction form
    1,178,847.64/1,626,809.72 = 642,303.64/x
  3. Step 3: Cross multiply
    1,178,847.64x = 1,626,809.72 × 642,303.64
  4. Step 4: Simplify right side
    1,178,847.64x = 1,044,905,804,743.38
  5. Step 5: Solve for x
    x = 1,044,905,804,743.38/1,178,847.64
  6. Step 6: Final answer
    x = 886,379.01

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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.