Home / 678,848.76-1,018,701.90-379,525.68

Finding the Fourth Proportional to 678,848.76, 1,018,701.90 and 379,525.68

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Solution

The fourth proportional to 678,848.76, 1,018,701.90 and 379,525.68 is: 569,528.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,848.76 : 1,018,701.90 = 379,525.68 : x
  2. Step 2: Convert to fraction form
    678,848.76/1,018,701.90 = 379,525.68/x
  3. Step 3: Cross multiply
    678,848.76x = 1,018,701.90 × 379,525.68
  4. Step 4: Simplify right side
    678,848.76x = 386,623,531,314.79
  5. Step 5: Solve for x
    x = 386,623,531,314.79/678,848.76
  6. Step 6: Final answer
    x = 569,528.23

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Double scale
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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.