Home / 1,354,005.16-1,868,281.80-870,459.40

Finding the Fourth Proportional to 1,354,005.16, 1,868,281.80 and 870,459.40

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Solution

The fourth proportional to 1,354,005.16, 1,868,281.80 and 870,459.40 is: 1,201,076.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354,005.16 : 1,868,281.80 = 870,459.40 : x
  2. Step 2: Convert to fraction form
    1,354,005.16/1,868,281.80 = 870,459.40/x
  3. Step 3: Cross multiply
    1,354,005.16x = 1,868,281.80 × 870,459.40
  4. Step 4: Simplify right side
    1,354,005.16x = 1,626,263,454,658.92
  5. Step 5: Solve for x
    x = 1,626,263,454,658.92/1,354,005.16
  6. Step 6: Final answer
    x = 1,201,076.26

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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.