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Finding the Fourth Proportional to 944,364, 1,303,222.32 and 520,428

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Solution

The fourth proportional to 944,364, 1,303,222.32 and 520,428 is: 718,190.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    944,364 : 1,303,222.32 = 520,428 : x
  2. Step 2: Convert to fraction form
    944,364/1,303,222.32 = 520,428/x
  3. Step 3: Cross multiply
    944,364x = 1,303,222.32 × 520,428
  4. Step 4: Simplify right side
    944,364x = 678,233,385,552.96
  5. Step 5: Solve for x
    x = 678,233,385,552.96/944,364
  6. Step 6: Final answer
    x = 718,190.64

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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.