Home / 909,927.40-1,364,955.90-278,840.20

Finding the Fourth Proportional to 909,927.40, 1,364,955.90 and 278,840.20

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Solution

The fourth proportional to 909,927.40, 1,364,955.90 and 278,840.20 is: 418,280.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,927.40 : 1,364,955.90 = 278,840.20 : x
  2. Step 2: Convert to fraction form
    909,927.40/1,364,955.90 = 278,840.20/x
  3. Step 3: Cross multiply
    909,927.40x = 1,364,955.90 × 278,840.20
  4. Step 4: Simplify right side
    909,927.40x = 380,604,576,147.18
  5. Step 5: Solve for x
    x = 380,604,576,147.18/909,927.40
  6. Step 6: Final answer
    x = 418,280.16

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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.