Home / 1,178,657.90-1,768,116.45-430,865.90

Finding the Fourth Proportional to 1,178,657.90, 1,768,116.45 and 430,865.90

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Solution

The fourth proportional to 1,178,657.90, 1,768,116.45 and 430,865.90 is: 646,346.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,657.90 : 1,768,116.45 = 430,865.90 : x
  2. Step 2: Convert to fraction form
    1,178,657.90/1,768,116.45 = 430,865.90/x
  3. Step 3: Cross multiply
    1,178,657.90x = 1,768,116.45 × 430,865.90
  4. Step 4: Simplify right side
    1,178,657.90x = 761,821,085,534.06
  5. Step 5: Solve for x
    x = 761,821,085,534.06/1,178,657.90
  6. Step 6: Final answer
    x = 646,346.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.