Home / 692,361.60-1,038,542.40-392,726.40

Finding the Fourth Proportional to 692,361.60, 1,038,542.40 and 392,726.40

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Solution

The fourth proportional to 692,361.60, 1,038,542.40 and 392,726.40 is: 589,089.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,361.60 : 1,038,542.40 = 392,726.40 : x
  2. Step 2: Convert to fraction form
    692,361.60/1,038,542.40 = 392,726.40/x
  3. Step 3: Cross multiply
    692,361.60x = 1,038,542.40 × 392,726.40
  4. Step 4: Simplify right side
    692,361.60x = 407,863,017,999.36
  5. Step 5: Solve for x
    x = 407,863,017,999.36/692,361.60
  6. Step 6: Final answer
    x = 589,089.60

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1.5x scale

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.