Home / 1,293,547.32-1,785,150.36-720,586.80

Finding the Fourth Proportional to 1,293,547.32, 1,785,150.36 and 720,586.80

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Solution

The fourth proportional to 1,293,547.32, 1,785,150.36 and 720,586.80 is: 994,440.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,547.32 : 1,785,150.36 = 720,586.80 : x
  2. Step 2: Convert to fraction form
    1,293,547.32/1,785,150.36 = 720,586.80/x
  3. Step 3: Cross multiply
    1,293,547.32x = 1,785,150.36 × 720,586.80
  4. Step 4: Simplify right side
    1,293,547.32x = 1,286,355,785,431.25
  5. Step 5: Solve for x
    x = 1,286,355,785,431.25/1,293,547.32
  6. Step 6: Final answer
    x = 994,440.45

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1.5x scale

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.