Home / 470,455.14-705,683.26-128,901.46

Finding the Fourth Proportional to 470,455.14, 705,683.26 and 128,901.46

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Solution

The fourth proportional to 470,455.14, 705,683.26 and 128,901.46 is: 193,352.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,455.14 : 705,683.26 = 128,901.46 : x
  2. Step 2: Convert to fraction form
    470,455.14/705,683.26 = 128,901.46/x
  3. Step 3: Cross multiply
    470,455.14x = 705,683.26 × 128,901.46
  4. Step 4: Simplify right side
    470,455.14x = 90,963,602,511.56
  5. Step 5: Solve for x
    x = 90,963,602,511.56/470,455.14
  6. Step 6: Final answer
    x = 193,352.34

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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.