Home / 828,837.40-1,243,256.10-473,887.30

Finding the Fourth Proportional to 828,837.40, 1,243,256.10 and 473,887.30

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Solution

The fourth proportional to 828,837.40, 1,243,256.10 and 473,887.30 is: 710,830.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,837.40 : 1,243,256.10 = 473,887.30 : x
  2. Step 2: Convert to fraction form
    828,837.40/1,243,256.10 = 473,887.30/x
  3. Step 3: Cross multiply
    828,837.40x = 1,243,256.10 × 473,887.30
  4. Step 4: Simplify right side
    828,837.40x = 589,163,276,437.53
  5. Step 5: Solve for x
    x = 589,163,276,437.53/828,837.40
  6. Step 6: Final answer
    x = 710,830.95

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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.