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Finding the Fourth Proportional to 478,595.16, 660,452.81 and 260,805.74

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Solution

The fourth proportional to 478,595.16, 660,452.81 and 260,805.74 is: 359,907.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,595.16 : 660,452.81 = 260,805.74 : x
  2. Step 2: Convert to fraction form
    478,595.16/660,452.81 = 260,805.74/x
  3. Step 3: Cross multiply
    478,595.16x = 660,452.81 × 260,805.74
  4. Step 4: Simplify right side
    478,595.16x = 172,249,879,240.84
  5. Step 5: Solve for x
    x = 172,249,879,240.84/478,595.16
  6. Step 6: Final answer
    x = 359,907.27

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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.