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Finding the Fourth Proportional to 760,521, 1,141,902.93 and 424,218.72

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Solution

The fourth proportional to 760,521, 1,141,902.93 and 424,218.72 is: 636,953.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,521 : 1,141,902.93 = 424,218.72 : x
  2. Step 2: Convert to fraction form
    760,521/1,141,902.93 = 424,218.72/x
  3. Step 3: Cross multiply
    760,521x = 1,141,902.93 × 424,218.72
  4. Step 4: Simplify right side
    760,521x = 484,416,599,328.85
  5. Step 5: Solve for x
    x = 484,416,599,328.85/760,521
  6. Step 6: Final answer
    x = 636,953.61

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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.