Home / 1,316,190.90-1,816,355.46-772,335.76

Finding the Fourth Proportional to 1,316,190.90, 1,816,355.46 and 772,335.76

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Solution

The fourth proportional to 1,316,190.90, 1,816,355.46 and 772,335.76 is: 1,065,830.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,190.90 : 1,816,355.46 = 772,335.76 : x
  2. Step 2: Convert to fraction form
    1,316,190.90/1,816,355.46 = 772,335.76/x
  3. Step 3: Cross multiply
    1,316,190.90x = 1,816,355.46 × 772,335.76
  4. Step 4: Simplify right side
    1,316,190.90x = 1,402,836,265,547.47
  5. Step 5: Solve for x
    x = 1,402,836,265,547.47/1,316,190.90
  6. Step 6: Final answer
    x = 1,065,830.39

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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.