Home / 845,824.52-1,268,970.96-390,554.70

Finding the Fourth Proportional to 845,824.52, 1,268,970.96 and 390,554.70

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Solution

The fourth proportional to 845,824.52, 1,268,970.96 and 390,554.70 is: 585,940.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,824.52 : 1,268,970.96 = 390,554.70 : x
  2. Step 2: Convert to fraction form
    845,824.52/1,268,970.96 = 390,554.70/x
  3. Step 3: Cross multiply
    845,824.52x = 1,268,970.96 × 390,554.70
  4. Step 4: Simplify right side
    845,824.52x = 495,602,572,591.51
  5. Step 5: Solve for x
    x = 495,602,572,591.51/845,824.52
  6. Step 6: Final answer
    x = 585,940.18

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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.