Finding the Fourth Proportional to 1,007,767.74, 1,390,719.50 and 555,058.74
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Solution
The fourth proportional to 1,007,767.74, 1,390,719.50 and 555,058.74 is: 765,981.07
Step by Step Solution
- Step 1: Write the proportion equation
1,007,767.74 : 1,390,719.50 = 555,058.74 : x - Step 2: Convert to fraction form
1,007,767.74/1,390,719.50 = 555,058.74/x - Step 3: Cross multiply
1,007,767.74x = 1,390,719.50 × 555,058.74 - Step 4: Simplify right side
1,007,767.74x = 771,931,010,588.14 - Step 5: Solve for x
x = 771,931,010,588.14/1,007,767.74 - Step 6: Final answer
x = 765,981.07
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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.