Home / 917,527.77-1,265,748.93-645,746.45

Finding the Fourth Proportional to 917,527.77, 1,265,748.93 and 645,746.45

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Solution

The fourth proportional to 917,527.77, 1,265,748.93 and 645,746.45 is: 890,820.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,527.77 : 1,265,748.93 = 645,746.45 : x
  2. Step 2: Convert to fraction form
    917,527.77/1,265,748.93 = 645,746.45/x
  3. Step 3: Cross multiply
    917,527.77x = 1,265,748.93 × 645,746.45
  4. Step 4: Simplify right side
    917,527.77x = 817,352,871,810.05
  5. Step 5: Solve for x
    x = 817,352,871,810.05/917,527.77
  6. Step 6: Final answer
    x = 890,820.85

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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.