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Finding the Fourth Proportional to 553,348.40, 830,022.60 and 402,882.80

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Solution

The fourth proportional to 553,348.40, 830,022.60 and 402,882.80 is: 604,324.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,348.40 : 830,022.60 = 402,882.80 : x
  2. Step 2: Convert to fraction form
    553,348.40/830,022.60 = 402,882.80/x
  3. Step 3: Cross multiply
    553,348.40x = 830,022.60 × 402,882.80
  4. Step 4: Simplify right side
    553,348.40x = 334,401,829,151.28
  5. Step 5: Solve for x
    x = 334,401,829,151.28/553,348.40
  6. Step 6: Final answer
    x = 604,324.20

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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.