Home / 920,047.93-1,378,779.74-784,410.53

Finding the Fourth Proportional to 920,047.93, 1,378,779.74 and 784,410.53

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Solution

The fourth proportional to 920,047.93, 1,378,779.74 and 784,410.53 is: 1,175,514.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,047.93 : 1,378,779.74 = 784,410.53 : x
  2. Step 2: Convert to fraction form
    920,047.93/1,378,779.74 = 784,410.53/x
  3. Step 3: Cross multiply
    920,047.93x = 1,378,779.74 × 784,410.53
  4. Step 4: Simplify right side
    920,047.93x = 1,081,529,345,120.74
  5. Step 5: Solve for x
    x = 1,081,529,345,120.74/920,047.93
  6. Step 6: Final answer
    x = 1,175,514.13

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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.