Home / 657,595.69-907,482.05-355,789.69

Finding the Fourth Proportional to 657,595.69, 907,482.05 and 355,789.69

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Solution

The fourth proportional to 657,595.69, 907,482.05 and 355,789.69 is: 490,989.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,595.69 : 907,482.05 = 355,789.69 : x
  2. Step 2: Convert to fraction form
    657,595.69/907,482.05 = 355,789.69/x
  3. Step 3: Cross multiply
    657,595.69x = 907,482.05 × 355,789.69
  4. Step 4: Simplify right side
    657,595.69x = 322,872,754,536.62
  5. Step 5: Solve for x
    x = 322,872,754,536.62/657,595.69
  6. Step 6: Final answer
    x = 490,989.77

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Double scale
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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.