Home / 669,129.10-1,003,695.08-470,339.01

Finding the Fourth Proportional to 669,129.10, 1,003,695.08 and 470,339.01

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Solution

The fourth proportional to 669,129.10, 1,003,695.08 and 470,339.01 is: 705,509.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,129.10 : 1,003,695.08 = 470,339.01 : x
  2. Step 2: Convert to fraction form
    669,129.10/1,003,695.08 = 470,339.01/x
  3. Step 3: Cross multiply
    669,129.10x = 1,003,695.08 × 470,339.01
  4. Step 4: Simplify right side
    669,129.10x = 472,076,947,917.38
  5. Step 5: Solve for x
    x = 472,076,947,917.38/669,129.10
  6. Step 6: Final answer
    x = 705,509.52

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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.