Home / 1,421,002.68-1,960,925.40-776,445

Finding the Fourth Proportional to 1,421,002.68, 1,960,925.40 and 776,445

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Solution

The fourth proportional to 1,421,002.68, 1,960,925.40 and 776,445 is: 1,071,462.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,002.68 : 1,960,925.40 = 776,445 : x
  2. Step 2: Convert to fraction form
    1,421,002.68/1,960,925.40 = 776,445/x
  3. Step 3: Cross multiply
    1,421,002.68x = 1,960,925.40 × 776,445
  4. Step 4: Simplify right side
    1,421,002.68x = 1,522,550,722,203
  5. Step 5: Solve for x
    x = 1,522,550,722,203/1,421,002.68
  6. Step 6: Final answer
    x = 1,071,462.25

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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.