Home / 738,368.16-1,018,948.08-398,836.48

Finding the Fourth Proportional to 738,368.16, 1,018,948.08 and 398,836.48

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Solution

The fourth proportional to 738,368.16, 1,018,948.08 and 398,836.48 is: 550,394.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,368.16 : 1,018,948.08 = 398,836.48 : x
  2. Step 2: Convert to fraction form
    738,368.16/1,018,948.08 = 398,836.48/x
  3. Step 3: Cross multiply
    738,368.16x = 1,018,948.08 × 398,836.48
  4. Step 4: Simplify right side
    738,368.16x = 406,393,665,529.96
  5. Step 5: Solve for x
    x = 406,393,665,529.96/738,368.16
  6. Step 6: Final answer
    x = 550,394.35

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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.