Finding the Fourth Proportional to 1,020,554.32, 1,408,215.36 and 612,569.74
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Solution
The fourth proportional to 1,020,554.32, 1,408,215.36 and 612,569.74 is: 845,256.45
Step by Step Solution
- Step 1: Write the proportion equation
1,020,554.32 : 1,408,215.36 = 612,569.74 : x - Step 2: Convert to fraction form
1,020,554.32/1,408,215.36 = 612,569.74/x - Step 3: Cross multiply
1,020,554.32x = 1,408,215.36 × 612,569.74 - Step 4: Simplify right side
1,020,554.32x = 862,630,116,939.21 - Step 5: Solve for x
x = 862,630,116,939.21/1,020,554.32 - Step 6: Final answer
x = 845,256.45
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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.