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Finding the Fourth Proportional to 607,341.15, 909,683.10 and 393,365.07

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Solution

The fourth proportional to 607,341.15, 909,683.10 and 393,365.07 is: 589,187.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,341.15 : 909,683.10 = 393,365.07 : x
  2. Step 2: Convert to fraction form
    607,341.15/909,683.10 = 393,365.07/x
  3. Step 3: Cross multiply
    607,341.15x = 909,683.10 × 393,365.07
  4. Step 4: Simplify right side
    607,341.15x = 357,837,556,309.32
  5. Step 5: Solve for x
    x = 357,837,556,309.32/607,341.15
  6. Step 6: Final answer
    x = 589,187.08

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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.