Home / 760,836.04-1,049,985.40-421,304.30

Finding the Fourth Proportional to 760,836.04, 1,049,985.40 and 421,304.30

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Solution

The fourth proportional to 760,836.04, 1,049,985.40 and 421,304.30 is: 581,417.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,836.04 : 1,049,985.40 = 421,304.30 : x
  2. Step 2: Convert to fraction form
    760,836.04/1,049,985.40 = 421,304.30/x
  3. Step 3: Cross multiply
    760,836.04x = 1,049,985.40 × 421,304.30
  4. Step 4: Simplify right side
    760,836.04x = 442,363,363,957.22
  5. Step 5: Solve for x
    x = 442,363,363,957.22/760,836.04
  6. Step 6: Final answer
    x = 581,417.47

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Double scale
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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.