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Finding the Fourth Proportional to 590,461.80, 885,779.10 and 310,000.20

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Solution

The fourth proportional to 590,461.80, 885,779.10 and 310,000.20 is: 465,045.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,461.80 : 885,779.10 = 310,000.20 : x
  2. Step 2: Convert to fraction form
    590,461.80/885,779.10 = 310,000.20/x
  3. Step 3: Cross multiply
    590,461.80x = 885,779.10 × 310,000.20
  4. Step 4: Simplify right side
    590,461.80x = 274,591,698,155.82
  5. Step 5: Solve for x
    x = 274,591,698,155.82/590,461.80
  6. Step 6: Final answer
    x = 465,045.66

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Similar ratio
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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.