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Finding the Fourth Proportional to 610,303.09, 915,301.46 and 290,257.45

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Solution

The fourth proportional to 610,303.09, 915,301.46 and 290,257.45 is: 435,313.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,303.09 : 915,301.46 = 290,257.45 : x
  2. Step 2: Convert to fraction form
    610,303.09/915,301.46 = 290,257.45/x
  3. Step 3: Cross multiply
    610,303.09x = 915,301.46 × 290,257.45
  4. Step 4: Simplify right side
    610,303.09x = 265,673,066,309.59
  5. Step 5: Solve for x
    x = 265,673,066,309.59/610,303.09
  6. Step 6: Final answer
    x = 435,313.32

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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.