Home / 1,038,409.30-1,554,989.55-828,457.30

Finding the Fourth Proportional to 1,038,409.30, 1,554,989.55 and 828,457.30

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Solution

The fourth proportional to 1,038,409.30, 1,554,989.55 and 828,457.30 is: 1,240,592.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,409.30 : 1,554,989.55 = 828,457.30 : x
  2. Step 2: Convert to fraction form
    1,038,409.30/1,554,989.55 = 828,457.30/x
  3. Step 3: Cross multiply
    1,038,409.30x = 1,554,989.55 × 828,457.30
  4. Step 4: Simplify right side
    1,038,409.30x = 1,288,242,444,121.22
  5. Step 5: Solve for x
    x = 1,288,242,444,121.22/1,038,409.30
  6. Step 6: Final answer
    x = 1,240,592.17

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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.