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Finding the Fourth Proportional to 554,156.24, 830,031.28 and 340,274.92

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Solution

The fourth proportional to 554,156.24, 830,031.28 and 340,274.92 is: 509,673.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,156.24 : 830,031.28 = 340,274.92 : x
  2. Step 2: Convert to fraction form
    554,156.24/830,031.28 = 340,274.92/x
  3. Step 3: Cross multiply
    554,156.24x = 830,031.28 × 340,274.92
  4. Step 4: Simplify right side
    554,156.24x = 282,438,827,399.50
  5. Step 5: Solve for x
    x = 282,438,827,399.50/554,156.24
  6. Step 6: Final answer
    x = 509,673.64

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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.