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Finding the Fourth Proportional to 560,853.68, 773,980.68 and 306,210.64

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Solution

The fourth proportional to 560,853.68, 773,980.68 and 306,210.64 is: 422,572.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,853.68 : 773,980.68 = 306,210.64 : x
  2. Step 2: Convert to fraction form
    560,853.68/773,980.68 = 306,210.64/x
  3. Step 3: Cross multiply
    560,853.68x = 773,980.68 × 306,210.64
  4. Step 4: Simplify right side
    560,853.68x = 237,001,119,370.44
  5. Step 5: Solve for x
    x = 237,001,119,370.44/560,853.68
  6. Step 6: Final answer
    x = 422,572.10

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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.