Home / 1,109,210.76-1,664,000.00-389,365.70

Finding the Fourth Proportional to 1,109,210.76, 1,664,000.00 and 389,365.70

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Solution

The fourth proportional to 1,109,210.76, 1,664,000.00 and 389,365.70 is: 584,113.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,210.76 : 1,664,000.00 = 389,365.70 : x
  2. Step 2: Convert to fraction form
    1,109,210.76/1,664,000.00 = 389,365.70/x
  3. Step 3: Cross multiply
    1,109,210.76x = 1,664,000.00 × 389,365.70
  4. Step 4: Simplify right side
    1,109,210.76x = 647,904,514,533.17
  5. Step 5: Solve for x
    x = 647,904,514,533.17/1,109,210.76
  6. Step 6: Final answer
    x = 584,113.08

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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.