Home / 688,075.22-949,565.95-382,155.28

Finding the Fourth Proportional to 688,075.22, 949,565.95 and 382,155.28

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Solution

The fourth proportional to 688,075.22, 949,565.95 and 382,155.28 is: 527,386.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,075.22 : 949,565.95 = 382,155.28 : x
  2. Step 2: Convert to fraction form
    688,075.22/949,565.95 = 382,155.28/x
  3. Step 3: Cross multiply
    688,075.22x = 949,565.95 × 382,155.28
  4. Step 4: Simplify right side
    688,075.22x = 362,881,641,500.72
  5. Step 5: Solve for x
    x = 362,881,641,500.72/688,075.22
  6. Step 6: Final answer
    x = 527,386.59

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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.