Home / 1,152,379.89-1,728,569.84-310,931.64

Finding the Fourth Proportional to 1,152,379.89, 1,728,569.84 and 310,931.64

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Solution

The fourth proportional to 1,152,379.89, 1,728,569.84 and 310,931.64 is: 466,397.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,379.89 : 1,728,569.84 = 310,931.64 : x
  2. Step 2: Convert to fraction form
    1,152,379.89/1,728,569.84 = 310,931.64/x
  3. Step 3: Cross multiply
    1,152,379.89x = 1,728,569.84 × 310,931.64
  4. Step 4: Simplify right side
    1,152,379.89x = 537,467,055,205.74
  5. Step 5: Solve for x
    x = 537,467,055,205.74/1,152,379.89
  6. Step 6: Final answer
    x = 466,397.46

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Double scale
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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.