Home / 1,121,188.89-1,547,036.95-662,378.16

Finding the Fourth Proportional to 1,121,188.89, 1,547,036.95 and 662,378.16

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Solution

The fourth proportional to 1,121,188.89, 1,547,036.95 and 662,378.16 is: 913,961.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,188.89 : 1,547,036.95 = 662,378.16 : x
  2. Step 2: Convert to fraction form
    1,121,188.89/1,547,036.95 = 662,378.16/x
  3. Step 3: Cross multiply
    1,121,188.89x = 1,547,036.95 × 662,378.16
  4. Step 4: Simplify right side
    1,121,188.89x = 1,024,723,483,215.39
  5. Step 5: Solve for x
    x = 1,024,723,483,215.39/1,121,188.89
  6. Step 6: Final answer
    x = 913,961.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.