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Finding the Fourth Proportional to 1,066,528, 1,599,792 and 318,574

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Solution

The fourth proportional to 1,066,528, 1,599,792 and 318,574 is: 477,861

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,066,528 : 1,599,792 = 318,574 : x
  2. Step 2: Convert to fraction form
    1,066,528/1,599,792 = 318,574/x
  3. Step 3: Cross multiply
    1,066,528x = 1,599,792 × 318,574
  4. Step 4: Simplify right side
    1,066,528x = 509,652,136,608
  5. Step 5: Solve for x
    x = 509,652,136,608/1,066,528
  6. Step 6: Final answer
    x = 477,861

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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.