Home / 917,552.32-1,376,328.48-286,520.20

Finding the Fourth Proportional to 917,552.32, 1,376,328.48 and 286,520.20

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Solution

The fourth proportional to 917,552.32, 1,376,328.48 and 286,520.20 is: 429,780.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,552.32 : 1,376,328.48 = 286,520.20 : x
  2. Step 2: Convert to fraction form
    917,552.32/1,376,328.48 = 286,520.20/x
  3. Step 3: Cross multiply
    917,552.32x = 1,376,328.48 × 286,520.20
  4. Step 4: Simplify right side
    917,552.32x = 394,345,911,355.30
  5. Step 5: Solve for x
    x = 394,345,911,355.30/917,552.32
  6. Step 6: Final answer
    x = 429,780.30

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Double scale
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Similar ratio
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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.