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Finding the Fourth Proportional to 570,559.86, 787,416.93 and 315,934.74

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Solution

The fourth proportional to 570,559.86, 787,416.93 and 315,934.74 is: 436,014.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,559.86 : 787,416.93 = 315,934.74 : x
  2. Step 2: Convert to fraction form
    570,559.86/787,416.93 = 315,934.74/x
  3. Step 3: Cross multiply
    570,559.86x = 787,416.93 × 315,934.74
  4. Step 4: Simplify right side
    570,559.86x = 248,772,363,051.15
  5. Step 5: Solve for x
    x = 248,772,363,051.15/570,559.86
  6. Step 6: Final answer
    x = 436,014.48

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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.