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Finding the Fourth Proportional to 604,560.80, 907,424.40 and 305,379.20

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Solution

The fourth proportional to 604,560.80, 907,424.40 and 305,379.20 is: 458,363.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,560.80 : 907,424.40 = 305,379.20 : x
  2. Step 2: Convert to fraction form
    604,560.80/907,424.40 = 305,379.20/x
  3. Step 3: Cross multiply
    604,560.80x = 907,424.40 × 305,379.20
  4. Step 4: Simplify right side
    604,560.80x = 277,108,537,332.48
  5. Step 5: Solve for x
    x = 277,108,537,332.48/604,560.80
  6. Step 6: Final answer
    x = 458,363.39

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1.5x scale

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.