Home / 1,118,065.31-1,677,274.42-478,373.21

Finding the Fourth Proportional to 1,118,065.31, 1,677,274.42 and 478,373.21

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Solution

The fourth proportional to 1,118,065.31, 1,677,274.42 and 478,373.21 is: 717,635.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,065.31 : 1,677,274.42 = 478,373.21 : x
  2. Step 2: Convert to fraction form
    1,118,065.31/1,677,274.42 = 478,373.21/x
  3. Step 3: Cross multiply
    1,118,065.31x = 1,677,274.42 × 478,373.21
  4. Step 4: Simplify right side
    1,118,065.31x = 802,363,148,346.29
  5. Step 5: Solve for x
    x = 802,363,148,346.29/1,118,065.31
  6. Step 6: Final answer
    x = 717,635.31

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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.