Home / 1,218,271.86-1,680,435.36-977,133.24

Finding the Fourth Proportional to 1,218,271.86, 1,680,435.36 and 977,133.24

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Solution

The fourth proportional to 1,218,271.86, 1,680,435.36 and 977,133.24 is: 1,347,818.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,271.86 : 1,680,435.36 = 977,133.24 : x
  2. Step 2: Convert to fraction form
    1,218,271.86/1,680,435.36 = 977,133.24/x
  3. Step 3: Cross multiply
    1,218,271.86x = 1,680,435.36 × 977,133.24
  4. Step 4: Simplify right side
    1,218,271.86x = 1,642,009,247,927.37
  5. Step 5: Solve for x
    x = 1,642,009,247,927.37/1,218,271.86
  6. Step 6: Final answer
    x = 1,347,818.42

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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.