Home / 738,458.40-1,107,687.60-402,535.20

Finding the Fourth Proportional to 738,458.40, 1,107,687.60 and 402,535.20

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Solution

The fourth proportional to 738,458.40, 1,107,687.60 and 402,535.20 is: 603,802.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,458.40 : 1,107,687.60 = 402,535.20 : x
  2. Step 2: Convert to fraction form
    738,458.40/1,107,687.60 = 402,535.20/x
  3. Step 3: Cross multiply
    738,458.40x = 1,107,687.60 × 402,535.20
  4. Step 4: Simplify right side
    738,458.40x = 445,883,249,603.52
  5. Step 5: Solve for x
    x = 445,883,249,603.52/738,458.40
  6. Step 6: Final answer
    x = 603,802.80

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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.