Home / 918,688.61-1,267,847.70-510,881.69

Finding the Fourth Proportional to 918,688.61, 1,267,847.70 and 510,881.69

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Solution

The fourth proportional to 918,688.61, 1,267,847.70 and 510,881.69 is: 705,048.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,688.61 : 1,267,847.70 = 510,881.69 : x
  2. Step 2: Convert to fraction form
    918,688.61/1,267,847.70 = 510,881.69/x
  3. Step 3: Cross multiply
    918,688.61x = 1,267,847.70 × 510,881.69
  4. Step 4: Simplify right side
    918,688.61x = 647,720,175,638.61
  5. Step 5: Solve for x
    x = 647,720,175,638.61/918,688.61
  6. Step 6: Final answer
    x = 705,048.66

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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.