Home / 1,038,567.40-1,556,684.70-439,426.60

Finding the Fourth Proportional to 1,038,567.40, 1,556,684.70 and 439,426.60

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Solution

The fourth proportional to 1,038,567.40, 1,556,684.70 and 439,426.60 is: 658,646.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,567.40 : 1,556,684.70 = 439,426.60 : x
  2. Step 2: Convert to fraction form
    1,038,567.40/1,556,684.70 = 439,426.60/x
  3. Step 3: Cross multiply
    1,038,567.40x = 1,556,684.70 × 439,426.60
  4. Step 4: Simplify right side
    1,038,567.40x = 684,048,664,993.02
  5. Step 5: Solve for x
    x = 684,048,664,993.02/1,038,567.40
  6. Step 6: Final answer
    x = 658,646.39

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Double scale
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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.