Home / 972,148.80-1,455,890.40-472,929.60

Finding the Fourth Proportional to 972,148.80, 1,455,890.40 and 472,929.60

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Solution

The fourth proportional to 972,148.80, 1,455,890.40 and 472,929.60 is: 708,259.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,148.80 : 1,455,890.40 = 472,929.60 : x
  2. Step 2: Convert to fraction form
    972,148.80/1,455,890.40 = 472,929.60/x
  3. Step 3: Cross multiply
    972,148.80x = 1,455,890.40 × 472,929.60
  4. Step 4: Simplify right side
    972,148.80x = 688,533,664,515.84
  5. Step 5: Solve for x
    x = 688,533,664,515.84/972,148.80
  6. Step 6: Final answer
    x = 708,259.54

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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.