Home / 771,405.69-1,152,417.47-499,317.38

Finding the Fourth Proportional to 771,405.69, 1,152,417.47 and 499,317.38

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Solution

The fourth proportional to 771,405.69, 1,152,417.47 and 499,317.38 is: 745,939.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,405.69 : 1,152,417.47 = 499,317.38 : x
  2. Step 2: Convert to fraction form
    771,405.69/1,152,417.47 = 499,317.38/x
  3. Step 3: Cross multiply
    771,405.69x = 1,152,417.47 × 499,317.38
  4. Step 4: Simplify right side
    771,405.69x = 575,422,063,527.96
  5. Step 5: Solve for x
    x = 575,422,063,527.96/771,405.69
  6. Step 6: Final answer
    x = 745,939.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.