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Finding the Fourth Proportional to 553,361.80, 830,042.70 and 549,862.60

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Solution

The fourth proportional to 553,361.80, 830,042.70 and 549,862.60 is: 824,793.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,361.80 : 830,042.70 = 549,862.60 : x
  2. Step 2: Convert to fraction form
    553,361.80/830,042.70 = 549,862.60/x
  3. Step 3: Cross multiply
    553,361.80x = 830,042.70 × 549,862.60
  4. Step 4: Simplify right side
    553,361.80x = 456,409,437,133.02
  5. Step 5: Solve for x
    x = 456,409,437,133.02/553,361.80
  6. Step 6: Final answer
    x = 824,793.90

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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.