Home / 997,657.40-1,496,486.10-678,792.80

Finding the Fourth Proportional to 997,657.40, 1,496,486.10 and 678,792.80

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Solution

The fourth proportional to 997,657.40, 1,496,486.10 and 678,792.80 is: 1,018,189.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,657.40 : 1,496,486.10 = 678,792.80 : x
  2. Step 2: Convert to fraction form
    997,657.40/1,496,486.10 = 678,792.80/x
  3. Step 3: Cross multiply
    997,657.40x = 1,496,486.10 × 678,792.80
  4. Step 4: Simplify right side
    997,657.40x = 1,015,803,989,980.08
  5. Step 5: Solve for x
    x = 1,015,803,989,980.08/997,657.40
  6. Step 6: Final answer
    x = 1,018,189.20

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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.