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Finding the Fourth Proportional to 1,018,429, 1,527,643.50 and 353,581

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Solution

The fourth proportional to 1,018,429, 1,527,643.50 and 353,581 is: 530,371.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,429 : 1,527,643.50 = 353,581 : x
  2. Step 2: Convert to fraction form
    1,018,429/1,527,643.50 = 353,581/x
  3. Step 3: Cross multiply
    1,018,429x = 1,527,643.50 × 353,581
  4. Step 4: Simplify right side
    1,018,429x = 540,145,716,373.50
  5. Step 5: Solve for x
    x = 540,145,716,373.50/1,018,429
  6. Step 6: Final answer
    x = 530,371.50

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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.