Finding the Fourth Proportional to 707,220.79, 975,963.95 and 384,930.12
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Solution
The fourth proportional to 707,220.79, 975,963.95 and 384,930.12 is: 531,203.16
Step by Step Solution
- Step 1: Write the proportion equation
707,220.79 : 975,963.95 = 384,930.12 : x - Step 2: Convert to fraction form
707,220.79/975,963.95 = 384,930.12/x - Step 3: Cross multiply
707,220.79x = 975,963.95 × 384,930.12 - Step 4: Simplify right side
707,220.79x = 375,677,920,389.17 - Step 5: Solve for x
x = 375,677,920,389.17/707,220.79 - Step 6: Final answer
x = 531,203.16
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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.