Home / 784,000.60-1,176,000.90-310,528.60

Finding the Fourth Proportional to 784,000.60, 1,176,000.90 and 310,528.60

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Solution

The fourth proportional to 784,000.60, 1,176,000.90 and 310,528.60 is: 465,792.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,000.60 : 1,176,000.90 = 310,528.60 : x
  2. Step 2: Convert to fraction form
    784,000.60/1,176,000.90 = 310,528.60/x
  3. Step 3: Cross multiply
    784,000.60x = 1,176,000.90 × 310,528.60
  4. Step 4: Simplify right side
    784,000.60x = 365,181,913,075.74
  5. Step 5: Solve for x
    x = 365,181,913,075.74/784,000.60
  6. Step 6: Final answer
    x = 465,792.90

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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.