Finding the Fourth Proportional to 771,681.51, 1,064,964.74 and 432,146.79
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Solution
The fourth proportional to 771,681.51, 1,064,964.74 and 432,146.79 is: 596,387.35
Step by Step Solution
- Step 1: Write the proportion equation
771,681.51 : 1,064,964.74 = 432,146.79 : x - Step 2: Convert to fraction form
771,681.51/1,064,964.74 = 432,146.79/x - Step 3: Cross multiply
771,681.51x = 1,064,964.74 × 432,146.79 - Step 4: Simplify right side
771,681.51x = 460,221,091,693.45 - Step 5: Solve for x
x = 460,221,091,693.45/771,681.51 - Step 6: Final answer
x = 596,387.35
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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.