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Finding the Fourth Proportional to 610,457.13, 842,484.11 and 355,802.85

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Solution

The fourth proportional to 610,457.13, 842,484.11 and 355,802.85 is: 491,038.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,457.13 : 842,484.11 = 355,802.85 : x
  2. Step 2: Convert to fraction form
    610,457.13/842,484.11 = 355,802.85/x
  3. Step 3: Cross multiply
    610,457.13x = 842,484.11 × 355,802.85
  4. Step 4: Simplify right side
    610,457.13x = 299,758,245,638.70
  5. Step 5: Solve for x
    x = 299,758,245,638.70/610,457.13
  6. Step 6: Final answer
    x = 491,038.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.