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Finding the Fourth Proportional to 616,853.80, 924,416.70 and 490,709.80

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Solution

The fourth proportional to 616,853.80, 924,416.70 and 490,709.80 is: 735,377.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,853.80 : 924,416.70 = 490,709.80 : x
  2. Step 2: Convert to fraction form
    616,853.80/924,416.70 = 490,709.80/x
  3. Step 3: Cross multiply
    616,853.80x = 924,416.70 × 490,709.80
  4. Step 4: Simplify right side
    616,853.80x = 453,620,333,973.66
  5. Step 5: Solve for x
    x = 453,620,333,973.66/616,853.80
  6. Step 6: Final answer
    x = 735,377.38

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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.