Home / 692,798.40-1,038,981.60-272,203.20

Finding the Fourth Proportional to 692,798.40, 1,038,981.60 and 272,203.20

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Solution

The fourth proportional to 692,798.40, 1,038,981.60 and 272,203.20 is: 408,219.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,798.40 : 1,038,981.60 = 272,203.20 : x
  2. Step 2: Convert to fraction form
    692,798.40/1,038,981.60 = 272,203.20/x
  3. Step 3: Cross multiply
    692,798.40x = 1,038,981.60 × 272,203.20
  4. Step 4: Simplify right side
    692,798.40x = 282,814,116,261.12
  5. Step 5: Solve for x
    x = 282,814,116,261.12/692,798.40
  6. Step 6: Final answer
    x = 408,219.93

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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.