Home / 380,547.12-570,852.36-127,815.60

Finding the Fourth Proportional to 380,547.12, 570,852.36 and 127,815.60

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Solution

The fourth proportional to 380,547.12, 570,852.36 and 127,815.60 is: 191,734.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,547.12 : 570,852.36 = 127,815.60 : x
  2. Step 2: Convert to fraction form
    380,547.12/570,852.36 = 127,815.60/x
  3. Step 3: Cross multiply
    380,547.12x = 570,852.36 × 127,815.60
  4. Step 4: Simplify right side
    380,547.12x = 72,963,836,904.82
  5. Step 5: Solve for x
    x = 72,963,836,904.82/380,547.12
  6. Step 6: Final answer
    x = 191,734.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.