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Finding the Fourth Proportional to 623,700.28, 860,927.70 and 369,050.92

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Solution

The fourth proportional to 623,700.28, 860,927.70 and 369,050.92 is: 509,421.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,700.28 : 860,927.70 = 369,050.92 : x
  2. Step 2: Convert to fraction form
    623,700.28/860,927.70 = 369,050.92/x
  3. Step 3: Cross multiply
    623,700.28x = 860,927.70 × 369,050.92
  4. Step 4: Simplify right side
    623,700.28x = 317,726,159,738.48
  5. Step 5: Solve for x
    x = 317,726,159,738.48/623,700.28
  6. Step 6: Final answer
    x = 509,421.22

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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.