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Finding the Fourth Proportional to 553,797.80, 830,696.70 and 301,855.40

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Solution

The fourth proportional to 553,797.80, 830,696.70 and 301,855.40 is: 452,783.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,797.80 : 830,696.70 = 301,855.40 : x
  2. Step 2: Convert to fraction form
    553,797.80/830,696.70 = 301,855.40/x
  3. Step 3: Cross multiply
    553,797.80x = 830,696.70 × 301,855.40
  4. Step 4: Simplify right side
    553,797.80x = 250,750,284,657.18
  5. Step 5: Solve for x
    x = 250,750,284,657.18/553,797.80
  6. Step 6: Final answer
    x = 452,783.10

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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.