Home / 738,956.06-1,019,759.63-399,424.31

Finding the Fourth Proportional to 738,956.06, 1,019,759.63 and 399,424.31

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Solution

The fourth proportional to 738,956.06, 1,019,759.63 and 399,424.31 is: 551,205.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,956.06 : 1,019,759.63 = 399,424.31 : x
  2. Step 2: Convert to fraction form
    738,956.06/1,019,759.63 = 399,424.31/x
  3. Step 3: Cross multiply
    738,956.06x = 1,019,759.63 × 399,424.31
  4. Step 4: Simplify right side
    738,956.06x = 407,316,779,482.69
  5. Step 5: Solve for x
    x = 407,316,779,482.69/738,956.06
  6. Step 6: Final answer
    x = 551,205.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.