Home / 1,178,345.60-1,768,209.60-430,467.20

Finding the Fourth Proportional to 1,178,345.60, 1,768,209.60 and 430,467.20

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Solution

The fourth proportional to 1,178,345.60, 1,768,209.60 and 430,467.20 is: 645,953.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,345.60 : 1,768,209.60 = 430,467.20 : x
  2. Step 2: Convert to fraction form
    1,178,345.60/1,768,209.60 = 430,467.20/x
  3. Step 3: Cross multiply
    1,178,345.60x = 1,768,209.60 × 430,467.20
  4. Step 4: Simplify right side
    1,178,345.60x = 761,156,235,525.12
  5. Step 5: Solve for x
    x = 761,156,235,525.12/1,178,345.60
  6. Step 6: Final answer
    x = 645,953.31

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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.