Home / 921,779.66-1,382,669.53-290,742.68

Finding the Fourth Proportional to 921,779.66, 1,382,669.53 and 290,742.68

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Solution

The fourth proportional to 921,779.66, 1,382,669.53 and 290,742.68 is: 436,114.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,779.66 : 1,382,669.53 = 290,742.68 : x
  2. Step 2: Convert to fraction form
    921,779.66/1,382,669.53 = 290,742.68/x
  3. Step 3: Cross multiply
    921,779.66x = 1,382,669.53 × 290,742.68
  4. Step 4: Simplify right side
    921,779.66x = 402,001,047,436.36
  5. Step 5: Solve for x
    x = 402,001,047,436.36/921,779.66
  6. Step 6: Final answer
    x = 436,114.03

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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.