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Finding the Fourth Proportional to 553,623.30, 830,434.95 and 301,024.80

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Solution

The fourth proportional to 553,623.30, 830,434.95 and 301,024.80 is: 451,537.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,623.30 : 830,434.95 = 301,024.80 : x
  2. Step 2: Convert to fraction form
    553,623.30/830,434.95 = 301,024.80/x
  3. Step 3: Cross multiply
    553,623.30x = 830,434.95 × 301,024.80
  4. Step 4: Simplify right side
    553,623.30x = 249,981,514,736.76
  5. Step 5: Solve for x
    x = 249,981,514,736.76/553,623.30
  6. Step 6: Final answer
    x = 451,537.20

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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.