Home / 690,803.60-1,036,345.10-291,445.24

Finding the Fourth Proportional to 690,803.60, 1,036,345.10 and 291,445.24

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Solution

The fourth proportional to 690,803.60, 1,036,345.10 and 291,445.24 is: 437,226.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,803.60 : 1,036,345.10 = 291,445.24 : x
  2. Step 2: Convert to fraction form
    690,803.60/1,036,345.10 = 291,445.24/x
  3. Step 3: Cross multiply
    690,803.60x = 1,036,345.10 × 291,445.24
  4. Step 4: Simplify right side
    690,803.60x = 302,037,846,392.32
  5. Step 5: Solve for x
    x = 302,037,846,392.32/690,803.60
  6. Step 6: Final answer
    x = 437,226.80

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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.