Home / 738,741.83-1,019,463.71-399,210.08

Finding the Fourth Proportional to 738,741.83, 1,019,463.71 and 399,210.08

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Solution

The fourth proportional to 738,741.83, 1,019,463.71 and 399,210.08 is: 550,909.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,741.83 : 1,019,463.71 = 399,210.08 : x
  2. Step 2: Convert to fraction form
    738,741.83/1,019,463.71 = 399,210.08/x
  3. Step 3: Cross multiply
    738,741.83x = 1,019,463.71 × 399,210.08
  4. Step 4: Simplify right side
    738,741.83x = 406,980,182,132.83
  5. Step 5: Solve for x
    x = 406,980,182,132.83/738,741.83
  6. Step 6: Final answer
    x = 550,909.90

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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.