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Finding the Fourth Proportional to 553,988.77, 830,225.00 and 300,938.29

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Solution

The fourth proportional to 553,988.77, 830,225.00 and 300,938.29 is: 450,995.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,988.77 : 830,225.00 = 300,938.29 : x
  2. Step 2: Convert to fraction form
    553,988.77/830,225.00 = 300,938.29/x
  3. Step 3: Cross multiply
    553,988.77x = 830,225.00 × 300,938.29
  4. Step 4: Simplify right side
    553,988.77x = 249,846,490,310.56
  5. Step 5: Solve for x
    x = 249,846,490,310.56/553,988.77
  6. Step 6: Final answer
    x = 450,995.59

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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.