Home / 985,623.69-1,478,428.86-530,429.14

Finding the Fourth Proportional to 985,623.69, 1,478,428.86 and 530,429.14

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Solution

The fourth proportional to 985,623.69, 1,478,428.86 and 530,429.14 is: 795,640.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,623.69 : 1,478,428.86 = 530,429.14 : x
  2. Step 2: Convert to fraction form
    985,623.69/1,478,428.86 = 530,429.14/x
  3. Step 3: Cross multiply
    985,623.69x = 1,478,428.86 × 530,429.14
  4. Step 4: Simplify right side
    985,623.69x = 784,201,748,760.98
  5. Step 5: Solve for x
    x = 784,201,748,760.98/985,623.69
  6. Step 6: Final answer
    x = 795,640.12

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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.