Home / 851,009.40-1,174,400.12-469,037.16

Finding the Fourth Proportional to 851,009.40, 1,174,400.12 and 469,037.16

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Solution

The fourth proportional to 851,009.40, 1,174,400.12 and 469,037.16 is: 647,275.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,009.40 : 1,174,400.12 = 469,037.16 : x
  2. Step 2: Convert to fraction form
    851,009.40/1,174,400.12 = 469,037.16/x
  3. Step 3: Cross multiply
    851,009.40x = 1,174,400.12 × 469,037.16
  4. Step 4: Simplify right side
    851,009.40x = 550,837,296,988.46
  5. Step 5: Solve for x
    x = 550,837,296,988.46/851,009.40
  6. Step 6: Final answer
    x = 647,275.22

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1.5x scale

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.