Home / 920,368.60-1,269,860.70-538,489.24

Finding the Fourth Proportional to 920,368.60, 1,269,860.70 and 538,489.24

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Solution

The fourth proportional to 920,368.60, 1,269,860.70 and 538,489.24 is: 742,970.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,368.60 : 1,269,860.70 = 538,489.24 : x
  2. Step 2: Convert to fraction form
    920,368.60/1,269,860.70 = 538,489.24/x
  3. Step 3: Cross multiply
    920,368.60x = 1,269,860.70 × 538,489.24
  4. Step 4: Simplify right side
    920,368.60x = 683,806,323,248.87
  5. Step 5: Solve for x
    x = 683,806,323,248.87/920,368.60
  6. Step 6: Final answer
    x = 742,970.07

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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.