Home / 354,024.40-531,036.60-319,032.40

Finding the Fourth Proportional to 354,024.40, 531,036.60 and 319,032.40

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Solution

The fourth proportional to 354,024.40, 531,036.60 and 319,032.40 is: 478,548.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,024.40 : 531,036.60 = 319,032.40 : x
  2. Step 2: Convert to fraction form
    354,024.40/531,036.60 = 319,032.40/x
  3. Step 3: Cross multiply
    354,024.40x = 531,036.60 × 319,032.40
  4. Step 4: Simplify right side
    354,024.40x = 169,417,880,985.84
  5. Step 5: Solve for x
    x = 169,417,880,985.84/354,024.40
  6. Step 6: Final answer
    x = 478,548.60

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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.