Home / 1,020,019.12-1,407,626.40-561,140.08

Finding the Fourth Proportional to 1,020,019.12, 1,407,626.40 and 561,140.08

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Solution

The fourth proportional to 1,020,019.12, 1,407,626.40 and 561,140.08 is: 774,373.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,019.12 : 1,407,626.40 = 561,140.08 : x
  2. Step 2: Convert to fraction form
    1,020,019.12/1,407,626.40 = 561,140.08/x
  3. Step 3: Cross multiply
    1,020,019.12x = 1,407,626.40 × 561,140.08
  4. Step 4: Simplify right side
    1,020,019.12x = 789,875,590,706.11
  5. Step 5: Solve for x
    x = 789,875,590,706.11/1,020,019.12
  6. Step 6: Final answer
    x = 774,373.32

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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.