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Finding the Fourth Proportional to 450,705.29, 621,980.67 and 246,752.81

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Solution

The fourth proportional to 450,705.29, 621,980.67 and 246,752.81 is: 340,522.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,705.29 : 621,980.67 = 246,752.81 : x
  2. Step 2: Convert to fraction form
    450,705.29/621,980.67 = 246,752.81/x
  3. Step 3: Cross multiply
    450,705.29x = 621,980.67 × 246,752.81
  4. Step 4: Simplify right side
    450,705.29x = 153,475,478,088.18
  5. Step 5: Solve for x
    x = 153,475,478,088.18/450,705.29
  6. Step 6: Final answer
    x = 340,522.91

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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.