Home / 784,783.76-1,083,330.65-530,479.40

Finding the Fourth Proportional to 784,783.76, 1,083,330.65 and 530,479.40

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Solution

The fourth proportional to 784,783.76, 1,083,330.65 and 530,479.40 is: 732,284.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,783.76 : 1,083,330.65 = 530,479.40 : x
  2. Step 2: Convert to fraction form
    784,783.76/1,083,330.65 = 530,479.40/x
  3. Step 3: Cross multiply
    784,783.76x = 1,083,330.65 × 530,479.40
  4. Step 4: Simplify right side
    784,783.76x = 574,684,589,123.16
  5. Step 5: Solve for x
    x = 574,684,589,123.16/784,783.76
  6. Step 6: Final answer
    x = 732,284.00

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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.