Home / 1,020,373.08-1,410,056.88-765,281.40

Finding the Fourth Proportional to 1,020,373.08, 1,410,056.88 and 765,281.40

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Solution

The fourth proportional to 1,020,373.08, 1,410,056.88 and 765,281.40 is: 1,057,544.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,373.08 : 1,410,056.88 = 765,281.40 : x
  2. Step 2: Convert to fraction form
    1,020,373.08/1,410,056.88 = 765,281.40/x
  3. Step 3: Cross multiply
    1,020,373.08x = 1,410,056.88 × 765,281.40
  4. Step 4: Simplify right side
    1,020,373.08x = 1,079,090,303,206.03
  5. Step 5: Solve for x
    x = 1,079,090,303,206.03/1,020,373.08
  6. Step 6: Final answer
    x = 1,057,544.86

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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.