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Finding the Fourth Proportional to 617,309.04, 851,505.08 and 423,628.32

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Solution

The fourth proportional to 617,309.04, 851,505.08 and 423,628.32 is: 584,345.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,309.04 : 851,505.08 = 423,628.32 : x
  2. Step 2: Convert to fraction form
    617,309.04/851,505.08 = 423,628.32/x
  3. Step 3: Cross multiply
    617,309.04x = 851,505.08 × 423,628.32
  4. Step 4: Simplify right side
    617,309.04x = 360,721,666,511.87
  5. Step 5: Solve for x
    x = 360,721,666,511.87/617,309.04
  6. Step 6: Final answer
    x = 584,345.35

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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.