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Finding the Fourth Proportional to 401,543.70, 602,315.55 and 307,065.30

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Solution

The fourth proportional to 401,543.70, 602,315.55 and 307,065.30 is: 460,597.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,543.70 : 602,315.55 = 307,065.30 : x
  2. Step 2: Convert to fraction form
    401,543.70/602,315.55 = 307,065.30/x
  3. Step 3: Cross multiply
    401,543.70x = 602,315.55 × 307,065.30
  4. Step 4: Simplify right side
    401,543.70x = 184,950,205,055.42
  5. Step 5: Solve for x
    x = 184,950,205,055.42/401,543.70
  6. Step 6: Final answer
    x = 460,597.95

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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.