Home / 1,426,307.76-1,968,288.12-772,920.72

Finding the Fourth Proportional to 1,426,307.76, 1,968,288.12 and 772,920.72

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Solution

The fourth proportional to 1,426,307.76, 1,968,288.12 and 772,920.72 is: 1,066,621.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,307.76 : 1,968,288.12 = 772,920.72 : x
  2. Step 2: Convert to fraction form
    1,426,307.76/1,968,288.12 = 772,920.72/x
  3. Step 3: Cross multiply
    1,426,307.76x = 1,968,288.12 × 772,920.72
  4. Step 4: Simplify right side
    1,426,307.76x = 1,521,330,670,877.85
  5. Step 5: Solve for x
    x = 1,521,330,670,877.85/1,426,307.76
  6. Step 6: Final answer
    x = 1,066,621.60

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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.