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Finding the Fourth Proportional to 553,616.30, 830,424.45 and 301,017.80

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Solution

The fourth proportional to 553,616.30, 830,424.45 and 301,017.80 is: 451,526.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,616.30 : 830,424.45 = 301,017.80 : x
  2. Step 2: Convert to fraction form
    553,616.30/830,424.45 = 301,017.80/x
  3. Step 3: Cross multiply
    553,616.30x = 830,424.45 × 301,017.80
  4. Step 4: Simplify right side
    553,616.30x = 249,972,541,005.21
  5. Step 5: Solve for x
    x = 249,972,541,005.21/553,616.30
  6. Step 6: Final answer
    x = 451,526.70

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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.