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Finding the Fourth Proportional to 658,959.30, 909,368.64 and 357,153.30

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Solution

The fourth proportional to 658,959.30, 909,368.64 and 357,153.30 is: 492,874.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,959.30 : 909,368.64 = 357,153.30 : x
  2. Step 2: Convert to fraction form
    658,959.30/909,368.64 = 357,153.30/x
  3. Step 3: Cross multiply
    658,959.30x = 909,368.64 × 357,153.30
  4. Step 4: Simplify right side
    658,959.30x = 324,784,010,692.51
  5. Step 5: Solve for x
    x = 324,784,010,692.51/658,959.30
  6. Step 6: Final answer
    x = 492,874.16

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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.