Home / 785,590.12-1,178,901.92-430,853.23

Finding the Fourth Proportional to 785,590.12, 1,178,901.92 and 430,853.23

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Solution

The fourth proportional to 785,590.12, 1,178,901.92 and 430,853.23 is: 646,563.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,590.12 : 1,178,901.92 = 430,853.23 : x
  2. Step 2: Convert to fraction form
    785,590.12/1,178,901.92 = 430,853.23/x
  3. Step 3: Cross multiply
    785,590.12x = 1,178,901.92 × 430,853.23
  4. Step 4: Simplify right side
    785,590.12x = 507,933,697,930.94
  5. Step 5: Solve for x
    x = 507,933,697,930.94/785,590.12
  6. Step 6: Final answer
    x = 646,563.25

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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.