Home / 920,070.30-1,380,386.84-471,108.74

Finding the Fourth Proportional to 920,070.30, 1,380,386.84 and 471,108.74

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Solution

The fourth proportional to 920,070.30, 1,380,386.84 and 471,108.74 is: 706,807.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,070.30 : 1,380,386.84 = 471,108.74 : x
  2. Step 2: Convert to fraction form
    920,070.30/1,380,386.84 = 471,108.74/x
  3. Step 3: Cross multiply
    920,070.30x = 1,380,386.84 × 471,108.74
  4. Step 4: Simplify right side
    920,070.30x = 650,312,295,647.50
  5. Step 5: Solve for x
    x = 650,312,295,647.50/920,070.30
  6. Step 6: Final answer
    x = 706,807.18

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Double scale
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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.