Home / 1,386,926.81-1,913,966.07-775,089.79

Finding the Fourth Proportional to 1,386,926.81, 1,913,966.07 and 775,089.79

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Solution

The fourth proportional to 1,386,926.81, 1,913,966.07 and 775,089.79 is: 1,069,627.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,926.81 : 1,913,966.07 = 775,089.79 : x
  2. Step 2: Convert to fraction form
    1,386,926.81/1,913,966.07 = 775,089.79/x
  3. Step 3: Cross multiply
    1,386,926.81x = 1,913,966.07 × 775,089.79
  4. Step 4: Simplify right side
    1,386,926.81x = 1,483,495,559,263.43
  5. Step 5: Solve for x
    x = 1,483,495,559,263.43/1,386,926.81
  6. Step 6: Final answer
    x = 1,069,627.86

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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.