Home / 972,000.30-1,458,000.45-572,435.40

Finding the Fourth Proportional to 972,000.30, 1,458,000.45 and 572,435.40

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Solution

The fourth proportional to 972,000.30, 1,458,000.45 and 572,435.40 is: 858,653.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,000.30 : 1,458,000.45 = 572,435.40 : x
  2. Step 2: Convert to fraction form
    972,000.30/1,458,000.45 = 572,435.40/x
  3. Step 3: Cross multiply
    972,000.30x = 1,458,000.45 × 572,435.40
  4. Step 4: Simplify right side
    972,000.30x = 834,611,070,795.93
  5. Step 5: Solve for x
    x = 834,611,070,795.93/972,000.30
  6. Step 6: Final answer
    x = 858,653.10

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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.