Home / 1,038,272.80-1,557,117.60-328,518.40

Finding the Fourth Proportional to 1,038,272.80, 1,557,117.60 and 328,518.40

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Solution

The fourth proportional to 1,038,272.80, 1,557,117.60 and 328,518.40 is: 492,685.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,272.80 : 1,557,117.60 = 328,518.40 : x
  2. Step 2: Convert to fraction form
    1,038,272.80/1,557,117.60 = 328,518.40/x
  3. Step 3: Cross multiply
    1,038,272.80x = 1,557,117.60 × 328,518.40
  4. Step 4: Simplify right side
    1,038,272.80x = 511,541,782,563.84
  5. Step 5: Solve for x
    x = 511,541,782,563.84/1,038,272.80
  6. Step 6: Final answer
    x = 492,685.34

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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.