Home / 657,271.08-907,042.88-370,790.28

Finding the Fourth Proportional to 657,271.08, 907,042.88 and 370,790.28

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Solution

The fourth proportional to 657,271.08, 907,042.88 and 370,790.28 is: 511,695.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,271.08 : 907,042.88 = 370,790.28 : x
  2. Step 2: Convert to fraction form
    657,271.08/907,042.88 = 370,790.28/x
  3. Step 3: Cross multiply
    657,271.08x = 907,042.88 × 370,790.28
  4. Step 4: Simplify right side
    657,271.08x = 336,322,683,447.21
  5. Step 5: Solve for x
    x = 336,322,683,447.21/657,271.08
  6. Step 6: Final answer
    x = 511,695.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.