Home / 1,528,972.80-2,110,005.84-840,674.40

Finding the Fourth Proportional to 1,528,972.80, 2,110,005.84 and 840,674.40

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Solution

The fourth proportional to 1,528,972.80, 2,110,005.84 and 840,674.40 is: 1,160,143.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,972.80 : 2,110,005.84 = 840,674.40 : x
  2. Step 2: Convert to fraction form
    1,528,972.80/2,110,005.84 = 840,674.40/x
  3. Step 3: Cross multiply
    1,528,972.80x = 2,110,005.84 × 840,674.40
  4. Step 4: Simplify right side
    1,528,972.80x = 1,773,827,893,538.50
  5. Step 5: Solve for x
    x = 1,773,827,893,538.50/1,528,972.80
  6. Step 6: Final answer
    x = 1,160,143.52

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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.