Home / 747,547.40-1,121,321.10-730,051.40

Finding the Fourth Proportional to 747,547.40, 1,121,321.10 and 730,051.40

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Solution

The fourth proportional to 747,547.40, 1,121,321.10 and 730,051.40 is: 1,095,077.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,547.40 : 1,121,321.10 = 730,051.40 : x
  2. Step 2: Convert to fraction form
    747,547.40/1,121,321.10 = 730,051.40/x
  3. Step 3: Cross multiply
    747,547.40x = 1,121,321.10 × 730,051.40
  4. Step 4: Simplify right side
    747,547.40x = 818,622,038,904.54
  5. Step 5: Solve for x
    x = 818,622,038,904.54/747,547.40
  6. Step 6: Final answer
    x = 1,095,077.10

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Double scale
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Similar ratio
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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.