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Finding the Fourth Proportional to 403,089.16, 604,737.62 and 289,368.80

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Solution

The fourth proportional to 403,089.16, 604,737.62 and 289,368.80 is: 434,127.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,089.16 : 604,737.62 = 289,368.80 : x
  2. Step 2: Convert to fraction form
    403,089.16/604,737.62 = 289,368.80/x
  3. Step 3: Cross multiply
    403,089.16x = 604,737.62 × 289,368.80
  4. Step 4: Simplify right side
    403,089.16x = 174,992,199,414.26
  5. Step 5: Solve for x
    x = 174,992,199,414.26/403,089.16
  6. Step 6: Final answer
    x = 434,127.77

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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.