Home / 710,147.20-1,064,702.40-289,206.40

Finding the Fourth Proportional to 710,147.20, 1,064,702.40 and 289,206.40

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Solution

The fourth proportional to 710,147.20, 1,064,702.40 and 289,206.40 is: 433,598.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,147.20 : 1,064,702.40 = 289,206.40 : x
  2. Step 2: Convert to fraction form
    710,147.20/1,064,702.40 = 289,206.40/x
  3. Step 3: Cross multiply
    710,147.20x = 1,064,702.40 × 289,206.40
  4. Step 4: Simplify right side
    710,147.20x = 307,918,748,175.36
  5. Step 5: Solve for x
    x = 307,918,748,175.36/710,147.20
  6. Step 6: Final answer
    x = 433,598.48

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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.