Home / 918,030.80-1,377,046.20-385,374.80

Finding the Fourth Proportional to 918,030.80, 1,377,046.20 and 385,374.80

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Solution

The fourth proportional to 918,030.80, 1,377,046.20 and 385,374.80 is: 578,062.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,030.80 : 1,377,046.20 = 385,374.80 : x
  2. Step 2: Convert to fraction form
    918,030.80/1,377,046.20 = 385,374.80/x
  3. Step 3: Cross multiply
    918,030.80x = 1,377,046.20 × 385,374.80
  4. Step 4: Simplify right side
    918,030.80x = 530,678,903,915.76
  5. Step 5: Solve for x
    x = 530,678,903,915.76/918,030.80
  6. Step 6: Final answer
    x = 578,062.20

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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.