Home / 1,178,851.50-1,626,815.16-642,307.50

Finding the Fourth Proportional to 1,178,851.50, 1,626,815.16 and 642,307.50

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Solution

The fourth proportional to 1,178,851.50, 1,626,815.16 and 642,307.50 is: 886,384.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,851.50 : 1,626,815.16 = 642,307.50 : x
  2. Step 2: Convert to fraction form
    1,178,851.50/1,626,815.16 = 642,307.50/x
  3. Step 3: Cross multiply
    1,178,851.50x = 1,626,815.16 × 642,307.50
  4. Step 4: Simplify right side
    1,178,851.50x = 1,044,915,578,381.70
  5. Step 5: Solve for x
    x = 1,044,915,578,381.70/1,178,851.50
  6. Step 6: Final answer
    x = 886,384.40

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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.