Home / 1,316,187.60-1,816,350.90-772,332.45

Finding the Fourth Proportional to 1,316,187.60, 1,816,350.90 and 772,332.45

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Solution

The fourth proportional to 1,316,187.60, 1,816,350.90 and 772,332.45 is: 1,065,825.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,187.60 : 1,816,350.90 = 772,332.45 : x
  2. Step 2: Convert to fraction form
    1,316,187.60/1,816,350.90 = 772,332.45/x
  3. Step 3: Cross multiply
    1,316,187.60x = 1,816,350.90 × 772,332.45
  4. Step 4: Simplify right side
    1,316,187.60x = 1,402,826,731,574.95
  5. Step 5: Solve for x
    x = 1,402,826,731,574.95/1,316,187.60
  6. Step 6: Final answer
    x = 1,065,825.83

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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.