Home / 1,060,363.20-1,590,544.80-640,459.20

Finding the Fourth Proportional to 1,060,363.20, 1,590,544.80 and 640,459.20

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Solution

The fourth proportional to 1,060,363.20, 1,590,544.80 and 640,459.20 is: 960,688.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,060,363.20 : 1,590,544.80 = 640,459.20 : x
  2. Step 2: Convert to fraction form
    1,060,363.20/1,590,544.80 = 640,459.20/x
  3. Step 3: Cross multiply
    1,060,363.20x = 1,590,544.80 × 640,459.20
  4. Step 4: Simplify right side
    1,060,363.20x = 1,018,679,050,172.16
  5. Step 5: Solve for x
    x = 1,018,679,050,172.16/1,060,363.20
  6. Step 6: Final answer
    x = 960,688.80

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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.