Home / 989,925.50-1,485,129.74-316,006.92

Finding the Fourth Proportional to 989,925.50, 1,485,129.74 and 316,006.92

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Solution

The fourth proportional to 989,925.50, 1,485,129.74 and 316,006.92 is: 474,087.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,925.50 : 1,485,129.74 = 316,006.92 : x
  2. Step 2: Convert to fraction form
    989,925.50/1,485,129.74 = 316,006.92/x
  3. Step 3: Cross multiply
    989,925.50x = 1,485,129.74 × 316,006.92
  4. Step 4: Simplify right side
    989,925.50x = 469,311,273,357.77
  5. Step 5: Solve for x
    x = 469,311,273,357.77/989,925.50
  6. Step 6: Final answer
    x = 474,087.47

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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.