Home / 989,852.77-1,484,760.93-315,928.72

Finding the Fourth Proportional to 989,852.77, 1,484,760.93 and 315,928.72

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Solution

The fourth proportional to 989,852.77, 1,484,760.93 and 315,928.72 is: 473,887.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,852.77 : 1,484,760.93 = 315,928.72 : x
  2. Step 2: Convert to fraction form
    989,852.77/1,484,760.93 = 315,928.72/x
  3. Step 3: Cross multiply
    989,852.77x = 1,484,760.93 × 315,928.72
  4. Step 4: Simplify right side
    989,852.77x = 469,078,620,120.91
  5. Step 5: Solve for x
    x = 469,078,620,120.91/989,852.77
  6. Step 6: Final answer
    x = 473,887.26

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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.